Do you know how much I love my microwave? I am team microwave! Keto Mug Cake is another one of my favorite recipes using that trusty machine!
My 90 second Low Carb Bread is another one of my microwave recipes. So good for sandwiches!
This keto mug cake is so easy to make with only 6 ingredients.
It’s also easy, rich and chocolatey, and ready in under 5 minutes!
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For this keto mug bread, you can make it chocolate or vanilla. All you need to do is omit the cocoa powder from the recipe for a vanilla version that is just as delicious!
You’ll also see in the recipe card below that I provide instructions for almond flour or coconut flour.
I’ve really grown to love coconut flour lately because it is so much more affordable than almond flour. I know some people do not like the taste of coconut flour, so almond flour instructions are provided!
I just love having these easy treat recipes in my back pocket to help me stay on track! You will also love my easy Butter Cookie Energy Bites. They are the most popular recipe on my site! I think everyone loves easy recipes!
Have this keto mug cake with some Keto Coffee!
This chocolate keto mug cake is another one of my favorite quick treats! I give instructions for vanilla and chocolate keto mug cakes...using coconut flour or almond flour!
- 1 Tablespoon Butter, melted
- 1 Tablespoon Coconut flour or 3 Tbsp Almond flour
- 2 Tablespoons Swerve (erythritol)
- 1 Tablespoons Cocoa powder
- 1/2 teaspoon Baking powder
- 1 Egg, beaten
- Splash of vanilla (for vanilla cake option)
- 1 Tablespoon Sugar free chocolate chips (optional for topping)
In a coffee mug, melt the butter in the microwave for 10 seconds. Add the coconut flour, swerve, cocoa powder, baking powder, and beaten egg.
Mix well. Microwave on high for 60 seconds, being sure not to overcook. If you overcook it, it will be dry.
Top with a few chocolate chips if desired.
Recipe Video
Macros for chocolate mug cake with coconut flour and no chocolate chips: 216 cal / 18g fat / 7.5 carbs / 4.5g fiber / 8.5g protein
- If you want to make this a vanilla cake, omit the cocoa powder and add the vanilla.
- To bake in the oven, Mix everything in an oven safe ramekin and put in a 350F oven for 10-15 minutes.
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Delicious!!! I made the chocolate version with almond flour, topped with Lily’s chocolate chips and unsweetened coconut flakes!!! No eggy taste!! LOL
I made the chocolate cake using the coconut flour. Mine turned out fine (like the image) but tasted very eggy. I didn’t quite enjoy that. Is there any way to get rid of the eggy taste?
You could use egg whites instead of a whole egg
Amazing! Thank you! I am eating now and trying to savor it even though it’s really warm and the HWCream is melting. 😂
So easy and quick so, 5 Stars….
I plugged the chocolate recipe in my food log without any modications and it came up over 30 carbs. I used swerve confectioner. How do you get the carbs so low??
You have to deduct the swerve carbs because they are a sugar alcohol. Also deduct the fiber
Followed the recipe exactly (almost, I didn’t beat the egg first, just cracked it right into the mug to save on cleanup) – it is far superior to my other chocolate mug cake made with almond flour, Swerve, egg yolk, mayo, water, and cacao. Love the fluffiness of the finished cake and the texture & taste of the coconut flour. I topped with Lily’s Chocolate Chips and homemade whipped cream from my Magic Bullet. This decadent dessert will keep me on track when the sweet tooth monster kicks in… thank you so much!
This was amazing….gave me that sugar fix I so needed. I actually made it for my son and took the last two bites . I would share this with my husband.. i used 2 packets of splenda instead of swerve and it was perfect.
THANKS!
Bless you for this! I made the chocolate one. Without the chocolate chips but sprinkled some unsweetened coconut on top. I poured a little heavy whipping cream. Tastes like a Mounds lava cake. My non-keto kids love it!
This just kept me from jumping off a bridge. Kidding. Kind of.
I just made this and added 15 Lilly’s chocolate chips and 1.5 tbsp heavy cream on top. Absolutely amazing!!! No eggy taste at all!!! I used the coconut flour and cacao. Thanks for the recipe, its a keeper!
I tried this and it wasn’t my favorite I went with the almond flour and I did the vanilla version and it did look like a mug cake but it wasn’t the best taste wise in my opinion.
I also used the almond flour and vanilla option and mine tasted very “eggy”. Not bad but I will try the chocolate version next time!
Also, try doing just an egg white to reduce the eggy taste
So, all I can say is WOW! This is sooooo good! I just scarfed the cake with some half-n-half and I cannot believe how good it was!! I tweaked the recipe just a bit. I used 1 1/2 tbsp almond flour, 1/2 tbsp coconut flour and added about 1 tbsp of sour cream. I still cannot believe how good this cake tastes!! Just like regular chocolate cake. Thank you so much for sharing!!
This has been my go-to Keto dessert when I have a hankering for something sweet. I just tried it with the 1 tbsp sour cream like you suggested and it was PERFECT! It added so much moisture. I’ll be sure to make it that way from now on. Thank you so much for the tip!
So did u add the egg also..
This mug cake is ridiculously good. I made mine with almond flour and added some dark chocolate chips on top. (Not strict keto, but hey. It was GOOD.)
Hi, just wondering what your microwave’s wattage is? Mine is a 1200 watt ginormous beast, and at 60 seconds my mug cake came out pretty spongey and pulled away from the sides of the mug, so I know I overcooked it.. I should have stopped it at 45 seconds just knowing how seriously my microwave takes its job lol.
I ate it anyway, and this recipe satisfied my craving for chocolatey baked forbidden delight, so next time I’ll know to try a shorter cooking time. But I wanted to thank you, because you saved me from giving up on my new keto diet!
BEST. MUG. CAKE. EVER. I made it in a ramekin and it was amazing. Have made it with almond extract and lemon. Both are great. The search for a great micro cake is over! Thank you for this recipe!
How many carbs are in this?
The nutrition is in the recipe card
Is there a way to make this a lemon mug cake?
Instead of the vanilla extract you could use lemon and/or add some lemon zest. sounds delicious!
This was so easy and so good! I do the chocolate with almond flour. Reduced swerve to 1.25 tablespoons only. I didn’t have baking powder so it didn’t quite rise to full mug height, but it was still delicious and decadent. A few Lilly’s chocolate chips on top and a dollop of heavy whipping cream. Yum!
Omg this is amazing! It completely curves my sweet craving and it’s guilt free!! I’ve tried the chocolate and vanilla, vanilla was not my fav.. today I also made gingerbread flavored!! ‘It’s the season😉
1/2 tsp cinnamon and ginger
1/4 tsp clove
1/8 tsp nutmeg
Splash of vanilla extract👌
Jessie, do you mean 1/2 tsp cinnamon and 1/2 tsp ginger?
If i’m making the vanilla version do I still add the cocoa power??
You would leave that out
This was delicious! I used coconut flour and added a teaspoon of coconut oil to the butter. I also used cacao powder as well as a splash of vanilla for a nice flavor combination. I added a Sprinkle of pink Himalayan salt and a small square of Keto chocolate walnut bark to the mix. Before eating I poured some heavy cream over the top and it was so good!
If using stevia how many packets do you think it will require?
I am not sure but you can look at this guide for a conversion: https://www.wholesomeyum.com/natural-low-carb-sweeteners-guide-conversion-chart/
Wow this was great! I added a little sour cream to keep it moist, and I cooked it for 50 secs . Amazing! Luckily I used a high quality cocoa powder, that was the star of the mug LoL be thank you!
I made the vanilla mug cake with coconut flour and OMG!!! It was amazing! I plopped mine out of the mug, spread a little organic crunchy peanut butter over the top, then drizzled sugar free maple syrup over that (not too much, just a little to add flavor) and it was excellent!! Thank you so much for this recipe!
I have been wanting a chocolate chip muffin. So I made the vanilla version and stirred in the chocolate chips. YUMMMMM! You are awesome!
Absolutely delicious!! Will def make it again
This was so delicious I felt guilty after eating it even tho its very Keto friendly! The portion size was big as well so it was very filling! I think I might even measure out small packets of the dry ingredients so it’ll be super duper quick and easy to make whenever! Thanks for the recipe!
Yummo!! It’s delicious. I usually don’t have a sweet tooth but I’ve been craving something sweet and don’t have anything in the house. I found another mug cake recipe a few days ago. Made it, hated it. It just made my craving worse. Decided to try one more time and found this recipe. Made it, loved it!! Thank you, thank you, thank you!!
This is very delicious, but I felt it was a little dry, especially towards the bottom. So I tweaked it: I used coconut flour, I reduced it to 1 tablespoon sweetner(I use monkfruit) I also only did the egg yolk, and added 2 teaspoons of water. It was perfect, it was very moist but not spongy because of the egg white. Definitely a great afternoon delight.
The consistency was spot on esp w the butter. So easy and quick. I used 1 tbsp and 1/2 of lakanto monkfruit and it was way too sweet also live in nc high humidity I had to cook it at 75 secs. This is a keeper, however, I will reduce sweetener to half next time.
Thanks
Thank you Jennifer for this recipe. I made it last night for my daughter who is on a gluten-free elimination diet for some digestion troubles and was sad to miss out on her sister’s birthday cake. She loved it! I used regular sugar for the sweetener and added the chocolate chips because she’s not on a low carb diet and it turned out perfectly. She didn’t feel left out of the celebration.
That is so great to hear. I am so glad your daughter liked it!
The cake is AWESOME! Thank you for the recipe. I used almond flour. I put it in my fitness pal and carbs were high. How do you figure your carbs when using erythritol? I’m new to this keto thing.
Since Erythritol is 0 net carbs I don’t even add it in the calculations
Rachel, You can also look for a listing in MFP that uses net carbs so that your recipe still has it listed but the carb count is correct. ☺
This mug cake was perfect!!! So moist and flavorful! I followed the recipe exactly using almond flour and no added chocolate chips. I poured some whipping cream on top, as I love milk and cake, and it was delicious. I have only tried one other mug cake recipe and it used mayonnaise, I truly believe the butter makes all the difference. This recipe has a higher calorie count and carb count than the mayo recipe but not enough to through off my daily carb count. Thank you for this recipe that is better than any “regular” cake I have had. Totally satiating, do not miss cake anymore!!!
Made this love it was good but added just a bit of peanut butter not a lot especially good when craving a Reese cup
Great idea!
So good! Thanks! My first Keto chocolate cake. Some mods I made: 1 TBSP of Swerve Granular Sugar Replacement (vs. 2 TBSP) plus a couple of drops of French Vanilla Stevia. Plus 1/4 tsp of Espresso Powder and a small pinch of Kosher Salt. Once made, I sprinkled with Lily’s Dark Chocolate Chips (no sugar added – 1 net carbs) and some Swerve Confectioners Sugar Replacement. I will make this again.
This is hands down the best mug cake recipe have made. Very moist and chocolatey. Perfect for a chocolate craving. I used almond flour and just sprinkled a little powdered Swerve on top! Perfect!
So good! I have missed having cake – this recipe is perfect!!
I just ate this and loved it! However, after doing the math, I realized that you said “optional” for chocolate chips. Were they not accounted for in the nutritional calculations? I used sugar free from Hershey’s, and it said that the chips alone have 8 net carbs, but the rest is what you said. It really was so good though!
I used Lily’s Dark Chocolate Premium Baking Chips (No Sugar Added) which has only 1 net carb for 60 chips and is sweetened with Stevia Extract. You can get this at Whole Foods. Yum!
Omg! My favorite mug cake! ❤️
Of course I didn’t do this exactly right, but it came out beautifully anyway! It was so good and was perfect for that chocolate/sweet craving I was having. I’m so glad I found this recipe. Tasty recipes like this make Keto even easier! Thanks for helping me stick to it!
This was soooo good!! Would it be possible to up the amounts and make a full size cake in the oven? Would it turn out the same? I’m not sure what the proportions would be…
I’m not sure as I haven’t tried that. If you try let me know how it works out!
Hello…
This is delicious Jennifer.. I did double it (except sweetener .. I used 2.5 tablespoons) and I microwaved it in a China basin… it came out perfect and hubby loved it too x
Ya’ll. This is the BEST mugcake recipe! SOOOOOOO GOOOD!!! i use the confectioners Swerve and it comes out amazing! Thanks Jen!!
The vanilla version was delicious. I added a dollop of homemade unsweetened whipped cream and some cinnamon.
Wonderful for keto! Thank you.
Me again…as mentioned I’ve been playing with the recipe. Today I used coconut flour and subbed the vanilla extract for almond extract. Y’ALL! It was amazing. Thanks to such a simple and delicious recipe, it’s so easy to give myself options by changing the extract flavor and topping with a few berries to stay in my macros. Jennifer thank you!!! I’m working my way through your recipes but this is a staple because I always have a sweet tooth! 😊 Next flavor will be lemon (saw a lemon extract) followed by orange. THANK YOU!
That’s exactly what I did too! (Added a splash of almond extract) It was fantastic! I’m going to try adding a small amount of raspberry extract when making the chocolate cake and see how that turns out. This is an EXCELLENT recipe and thank you for sharing it!
This is so, so good! I just made it for the 5th time since I found this recipe about 2 weeks ago. It’s my go to sweet-tooth recipe now! I do the cocoa with almond flour, no added chips. I do love it with sugar free whipped cream on top.
I am new to Keto and this was delicious. I only had liquid stevia on hand and 3/4 tsp seemed to work well. Do you know how many net carbs are in the almond flour chocolate mug recipe? I was figuring 3, but wanted to ask.
Love it, I did the vanilla version with some blueberries and splashed just a bit of heavy cream on the top. So good.
This was wonderful! Thank you! I made the vanilla version with coconut flour. I used just a little over 1tbsp of the erythritol/monk fruit sweetener blend I have on hand, but after it cooked I added a small pat of butter on the top, and sprinkled on a bit of the sweetener blend. Awesome!!
OH. EM. GEE. I made the vanilla version (I could probably add more vanilla next time) but this is AWESOME! I topped it with a teaspoon of peanut butter and it was amazing! I’ll be playing with this base and adding a few blueberries and strawberries for breakfast. I have been looking up mug cakes and they all have some random obscure ingredient that I don’t have. These are AMAZING and so simple!!! THANK YOU!!!
Can you make with monk fruit sweetener?
You can but I am not sure on the amount
I used a teaspoon of Lakanto monk fruit and it turned out delicious!
Holy cow! I just tried the vanilla version-with some slices of peach on top. (I “needed” peach cobbler! 😆) Really great!! Thanks!
Just ate a chocolate one now. I’m bad!! I made it with coconut flour and baked it for 67 seconds, a few seconds too long. I used almond flour for the vanilla ones and had to bake them for a few more than the 60 seconds called for. Still better than the other chocolate mug cake I tried.
Was craving for chocolate pava cake from Chilis. Not anymore! Thanks to your recipe I am saved! Haha! It’s pretty good my stepdaughter ended up asking for one and she is a sugar addict and hate cakes but she loved your mug cake recipe
I’m so glad y’all liked it!
I have a confession to make. I made the vanilla mug cake this morning and ate it. Just now I mixed up another one and set it in the fridge for later. I put a few choc chips on the one earlier and I’m going to put a few on this one with a dab of crushed, unsweetened strawberries. I have to say this is the best mug cake I’ve had to date. Hope I can wait for another hour or so.
That sounds amazing! I am not sure I could wait!
Wow, I made this tonight, I am on a complete keto diet, my fiancé ate it, added the chips on top and strawberries, wow, can’t believe how good this is. Thanks for sharing this awesome recipe
Easy and so so tasty! I subbed MCT oil for the butter, turned out just fine 🙂
Can you please let me know how you calculate only 3g carbs for this cake? After devouring it, I calculated the ingredients and, because of the erythritol, came to a ridiculous 27g 🙁 Please tell me it’s only 3g of carbs!
Erythritol is a sugar alcohol so you deduct that from the carb count.
Just made this chocolate mug cake with almond flour because I suddenly had such a craving for something a bit sweet. So quick and easy and delicious. Really hit the spot! I will definitely make this again. Thank you!
This was delicious and moist! My modifications due to ingredients on hand were:
2 tbsp truvia for swerve
1/8 tsp baking soda for powder
Dash of cinnamon-cuz ❤️
Will make again for sure. Thanks!
Thank you-fast, easy, and just hit the spot for me tonight. Delicious!
i love you i been almost dying with my cake cravings (i started 2 weeks ago and its been hell with the withdrawals and headaches) but this cake hit the spot.
I’ve been looking for a vanilla cake so when I stumbled on this I thought I would give it a try. It really came out good! I topped it with mashed strawberries and whipped cream. So delicious.
That sounds so good!
I seldom write reviews of recipes, but this is so DELICIOUS that I feel compelled to write this review as I eat it! I made the chocolate version using almond flour with a couple tiny adjustments to my taste. I often find keto recipes too eggy tasting and a little too sweet for my taste. So instead of 2 TBL of sweetener, I used 1 TBL. As far as the egg, I used the white of 1 egg and 1/2 the yolk. Being a chocolate lover, I of course just had to put a few chocolate chips on top. Oh my gawd…..taste just like a chocolate lava cake!!!! Oh yeah, I put a squirt of light whipped cream on top! Thank you so much for this FRABJOUS DESSERT!!!!!
Thanks Susan!
I made the vanilla version just as written, and used it for a strawberry shortcake base. It was perfect; husband says to pin this recipe! Thanks for doing the experimenting and posting delicious recipes.
Thank you for the great review!
I just made it for my keto husband for father’s day weekend! Of course today was just the trial run and I’ll be making it again tomorrow for desert with father’s day dinner!
thank you so much!
I just made this vanilla mug cake with a few alterations because my husband needs to be dairy free. I used 1 tablespoon coconut oil instead of butter, one and a half tablespoon each of coconut flour and almond flour, 1/2 tsp vanilla. Very mild flavor and perfect texture. It was delicious with raspberries or strawberries (slightly sweetened) on them.
I make this nearly everyday, sometimes twice! Just be careful not to overcook it or it’ll be dry. I usually let it stay a little runny and then mix it all up.
Great idea!
I made this tonight, but rather than the chocolate chips I decided to put 2 tablespoon of spreadable cream cheese on top of the chocolate version. It was so good.
sounds amazing!
I have never tried cake in a mug but I have to say this was delicious!! This really satisfied my cake craving 😊
I just made the chocolate mug cake with coconut flour, but it turned out very soggy and granular. Any ideas why?
Coconut flour has a granular texture. Almond flour would be a little smoother
I just made the vanilla and it seemed very eggy tasting. I followed the recipe exactly. Does this sound normal or did anyone else notice this happened to them?:(
Keto desserts can have an eggy taste because they are heavy on the eggs. You could try using just egg whites next time.
I made the Vanilla mug cake & added a few choc chips- this turned out GREAT! It hit the spot for my sweet/cake craving & I only finished half of it- it was filling!
My daughter just made the chocolate cake and we loved it. The texture and flavor is perfect. Thanks for sharing!
So glad you liked it!
I just made the vanilla version of this using coconut flour. Yowza it was extremely sweet. Is 2 tblsp of swerve a typo and supposed to be teaspoons instead? I’ve looked at the recipe over and over figuring my old eyes read it wrong. I will definitely make it again but I’m going to pare down the swerve for sure. 😊
Can I use Splenda or Stevia instead for the sweetener? I have those on hand!
You definitely could but I’m not sure on the amount
PLEASE tell me you have a link for that gorgeous mug????!!!!! OH! And beautiful recipe!! Thank you! xoxo
Sorry, Marie! I wish I could find another one but it is Polish pottery I bought when we lived in Germany.
That’s ok!! Just went on eBay and typed Polish mug! There are quite a few that are similar!! Yay!! Ty!!
I love your mug! Do you remember where you bought it?
It is Polish pottery that I bought in Germany. I have tried to find something similar with no luck!
OMGOSH!!! Just went on eBay and typed polish mug!!! A bunch to choose from!
I made the keto cake yesterday! I loved it so much I made it again today! Thank you! I absolutely LOVE this recipe. ( I used coconut flour)
Yay! So glad you liked it!
I made this last night … absolutely amazing !!! It has definitely made it into my favorite recipes book! Can you give us a nutritional count on this one though … I couldn’t find any values other than calories.
So glad you liked it, Susan. I have added the nutrition info to the post.
WOW!!!
My hubby quite often does a low carb diet, but with a sweet tooth he struggles for dessert ideas. THIS IS PERFECT!!
Pinning and making REAL soon!
Low Carb is the best!
It was a sign! I had all the ingredients so I just made one! Oh wait, did I mention I like it so much I think Im going to make another!!
so glad you liked it!
I made it with almond flour and cocoa…yummy!
So glad you liked it!
I made this a week ago with coconut flour, it was pretty good, but the coconut was “crunchy.” This time, tonight, I made it with PB flour. Everyone loved it! So good! The PB flour to almond flour ratio is 1:1, so just substitute the same amount of PB flour, as you would use almond flour.
What a great idea! Thanks for sharing!
What is PB flour? Would love to try it because I don’t love coconut flour. Thanks!!!
Peanut butter flour
It’s just dehydrated and ground peanuts. I used PB Fit in mine, which has a little added sugar, but is still less carbs than most natural PBs.