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    Home » Recipes » Keto Desserts

    Published: Apr 22, 2020 · Modified: Apr 30, 2023 by Jennifer Banz· 604 Comments

    Keto Mug Cake - Chocolate, Vanilla, or Peanut Butter

    Servings: 1
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    Cals:
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    Fat:
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    Carbs:
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    Fiber:
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    Protein:
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    Time: 5 minutes mins
    Jump to Recipe Pin for Later

    This chocolate keto mug cake in the microwave is another one of my favorite quick keto desserts! I give instructions for vanilla, chocolate, and peanut butter versions and you can make it with almond flour or coconut flour.  Keto chocolate mug cake is my favorite keto dessert recipe!

    keto mug cakes

    Do you know how much I love my microwave?  I am team microwave!  Keto Mug Cake is another one of my favorite keto dessert 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 and ready in under 5 minutes!

    For this keto mug cake, you can make it peanut butter, chocolate, or vanilla.

    Chocolate Keto Mug Cake

    For a keto chocolate mug cake, in a microwave safe coffee mug, melt the butter in the microwave for 10 seconds.  Add the coconut flour or almond flour, sweetener, cocoa powder, baking powder, vanilla and beaten egg.  Mix well.
    To make this keto chocolate dessert, microwave on high for 60 seconds, being sure not to overcook.  If you overcook it, it will be dry. Top with sugar free chocolate chips of desired.

    Peanut Butter

    In a microwave safe coffee mug, melt the butter in the microwave for 10 seconds.  Swirl around the inside of the mug or ramekin.
    melted butter in a ramekin
    Add the coconut flour or almond flour, sweetener, baking powder, vanilla and beaten egg.  Mix well. Swirl in the peanut butter.
    Microwave on high for 60 seconds, being sure not to overcook.  If you overcook it, it will be dry. Top with sugar free chocolate chips if desired (highly recommend to make this keto dessert over the top).

    Vanilla

    In a microwave safe coffee mug, melt the butter in the microwave for 10 seconds.  Add the coconut flour or almond flour, sweetener, baking powder, vanilla 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 sugar free chocolate chips of desired or mix in before cooking.

    Toppings

    I like to top these keto mug cakes with sugar free chocolate chips, sugar free chocolate syrup, or whipped cream.

    pouring chocolate syrup on a vanilla mug cake

    I just love having these easy keto dessert recipes in my back pocket to help me stay on track!  You will also love my easy keto peanut butter cups and Butter Cookie Energy Bites.

    Have this keto mug cake with some Keto Coffee!

    KETO MUG CAKE IN A COLORFUL POLISH POTTERY MUG

    Keto Mug Cake - Chocolate, Vanilla, or Peanut Butter

    This chocolate keto mug cake is another one of my favorite quick keto dessert recipes! I give instructions for vanilla, chocolate and peanut butter...using coconut flour or almond flour!
    4.87 from 446 votes
    Course: Dessert
    Cuisine: American
    Prep Time: 4 minutes minutes
    Cook Time: 1 minute minute
    Total Time: 5 minutes minutes
    Servings: 1
    Calories:
    Author: Jennifer Banz

    This post may contain affiliate links

    Tip: Hitting your 20–30g protein per meal goal helps you stay full and supports muscle.

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    Ingredients

    • 1 Tablespoon Butter, melted
    • 1 Tablespoon Coconut flour or 3 tablespoon Almond flour
    • 2 Tablespoons sugar free granulated sweetener (see my favorite on Amazon)
    • 1 Tablespoons Cocoa powder, (For Chocolate Version)
    • 1 Tablespoon Sugar free Peanut butter, (For Peanut Butter Version)
    • ½ teaspoon Baking powder
    • 1 Egg, beaten
    • Splash of vanilla
    • 1 Tablespoon Sugar free Chocolate Chips

    Instructions

    For Chocolate

    • In a microwave safe coffee mug, melt the butter in the microwave for 10 seconds.  Add the coconut flour or almond flour, sweetener, cocoa powder, baking powder, vanilla 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 sugar free chocolate chips of desired.

    For Vanilla

    • In a microwave safe coffee mug, melt the butter in the microwave for 10 seconds.  Add the coconut flour or almond flour, sweetener, baking powder, vanilla 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 sugar free chocolate chips of desired or mix in before cooking.

    For Peanut Butter

    • In a microwave safe coffee mug, melt the butter in the microwave for 10 seconds.  Add the coconut flour or almond flour, sweetener, baking powder, vanilla and beaten egg.  Mix well. Swirl in the peanut butter.  Microwave on high for 60 seconds, being sure not to overcook.  If you overcook it, it will be dry. Top with sugar free chocolate chips of desired.

    Notes

    Nutrition for chocolate mug cake with almond flour and no chocolate chips: 312 cal / 28g fat / 7 carbs / 4g fiber / 12g protein
    Nutrition for peanut butter with almond flour and no chocolate chips: 395 cal / 35g fat / 8 carbs / 4g fiber / 15g protein
    Nutrition for Vanilla with almond flour and no chocolate chips: 303 cal / 28g fat / 5 carbs / 2g fiber / 11g protein
    • Baking Instructions: Use an oven safe ramekin.  Bake in the oven at 350 for 15-20 minutes.
    Servings: 1
    Keyword :recipe for keto mug cake

    More Keto Desserts

    • cake on a plate
      Keto Snickerdoodle Mug Cake
    • strawberries dipped in chocolate fruit dip
      The 8 Chocolate Recipes I Keep On Repeat (And No One Believes They're Keto!)
    • sweetened berries over yogurt in a glass bowl
      Low Carb Berry Yogurt Bowl
    • keto lemon cookies on a sheet tray
      Keto Iced Lemon Cookies

    Reader Interactions

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      Recipe Reviews




    1. Laurie says

      October 18, 2018 at 2:47 pm

      5 stars
      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!

      Reply
    2. Olive says

      October 12, 2018 at 4:40 am

      5 stars
      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!

      Reply
    3. Holly says

      October 11, 2018 at 9:01 pm

      5 stars
      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!

      Reply
    4. Irianne says

      October 08, 2018 at 8:26 am

      5 stars
      Absolutely delicious!! Will def make it again

      Reply
    5. Christine says

      October 04, 2018 at 7:11 pm

      5 stars
      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!

      Reply
    6. Jodi says

      October 03, 2018 at 10:41 pm

      5 stars
      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!!

      Reply
    7. Val says

      September 29, 2018 at 4:22 pm

      4 stars
      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.

      Reply
    8. Kay Marie says

      September 27, 2018 at 6:56 pm

      5 stars
      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

      Reply
      • Beth says

        October 01, 2018 at 7:27 am

        5 stars
        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.

        Reply
    9. Gayle says

      September 13, 2018 at 3:39 pm

      5 stars
      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.

      Reply
    10. Jen says

      September 10, 2018 at 9:25 pm

      5 stars
      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!

      Reply
    11. Becky says

      September 10, 2018 at 6:13 pm

      5 stars
      So good! I have missed having cake - this recipe is perfect!!

      Reply
    12. RGWL says

      September 05, 2018 at 2:32 pm

      5 stars
      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!

      Reply
    13. Pat says

      August 23, 2018 at 7:33 pm

      5 stars
      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!

      Reply
    14. Mikayla says

      August 21, 2018 at 9:02 pm

      5 stars
      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...

      Reply
      • jenniferbanz says

        August 22, 2018 at 7:48 am

        I'm not sure as I haven't tried that. If you try let me know how it works out!

        Reply
        • Nikki says

          September 03, 2018 at 1:30 pm

          5 stars
          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

    15. Mikayla says

      August 21, 2018 at 8:59 pm

      5 stars
      I used a teaspoon of Lakanto monk fruit and it turned out delicious!

      Reply
    16. Angela Latimer says

      August 20, 2018 at 9:23 pm

      5 stars
      Ya'll. This is the BEST mugcake recipe! SOOOOOOO GOOOD!!! i use the confectioners Swerve and it comes out amazing! Thanks Jen!!

      Reply
    17. Chris says

      August 12, 2018 at 4:07 pm

      5 stars
      The vanilla version was delicious. I added a dollop of homemade unsweetened whipped cream and some cinnamon.
      Wonderful for keto! Thank you.

      Reply
    18. Kristen says

      August 11, 2018 at 7:54 pm

      5 stars
      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.

      Reply
    19. Carly says

      August 06, 2018 at 10:40 pm

      5 stars
      Love it, I did the vanilla version with some blueberries and splashed just a bit of heavy cream on the top. So good.

      Reply
    20. Lara says

      August 06, 2018 at 7:35 pm

      5 stars
      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!!

      Reply
    21. Brittney says

      August 01, 2018 at 7:10 pm

      5 stars
      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!!!

      Reply
    22. Lynn says

      July 31, 2018 at 9:05 am

      5 stars
      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.

      Reply
    23. Aleta Abejero says

      July 30, 2018 at 4:56 pm

      5 stars
      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

      Reply
    24. Lynn says

      July 30, 2018 at 4:30 pm

      5 stars
      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.

      Reply
    25. Brenda says

      July 28, 2018 at 1:12 am

      5 stars
      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

      Reply
    26. Meredith says

      July 26, 2018 at 4:39 pm

      5 stars
      Easy and so so tasty! I subbed MCT oil for the butter, turned out just fine 🙂

      Reply
    27. Linda says

      July 11, 2018 at 9:44 pm

      5 stars
      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!

      Reply
    28. Heather says

      July 02, 2018 at 9:42 pm

      5 stars
      Thank you-fast, easy, and just hit the spot for me tonight. Delicious!

      Reply
    29. yaritza says

      July 02, 2018 at 12:09 am

      5 stars
      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.

      Reply
    30. Lynda says

      June 29, 2018 at 2:29 pm

      5 stars
      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.

      Reply
    31. Lenae says

      June 16, 2018 at 6:15 pm

      5 stars
      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.

      Reply
    32. Carolina Villegas says

      June 16, 2018 at 3:31 pm

      5 stars
      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!

      Reply
    33. ManInWhite says

      May 27, 2018 at 7:21 pm

      5 stars
      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.

      Reply
    34. Jessi says

      May 25, 2018 at 10:11 pm

      5 stars
      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.

      Reply
    35. Angela says

      May 04, 2018 at 11:21 pm

      5 stars
      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!

      Reply
    36. tulips says

      April 27, 2018 at 9:03 am

      5 stars
      My daughter just made the chocolate cake and we loved it. The texture and flavor is perfect. Thanks for sharing!

      Reply
    37. Rolisha says

      March 31, 2018 at 6:56 pm

      5 stars
      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)

      Reply
    38. Susan says

      March 09, 2018 at 9:22 am

      5 stars
      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.

      Reply
    39. Claire | Sprinkles and Sprouts says

      March 06, 2018 at 10:15 am

      5 stars
      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!

      Reply
    40. michele says

      March 06, 2018 at 9:53 am

      5 stars
      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!!

      Reply
      • Chelsea Lachance says

        June 24, 2018 at 2:00 am

        5 stars
        I made it with almond flour and cocoa...yummy!

        Reply
    Newer Comments »

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    Hey there, I'm Jennifer Banz! I’m the creator behind Low Carb with Jennifer and author of the cookbook Live Life Keto.  

    I've been cooking and developing low carb and keto recipes for the past 13 years and it is my goal to bring you the best quality recipes and cooking tutorials possible.

    My recipes reflect my philosophy on cooking...everything needs to be easy, fast, exceptionally delicious, and use common ingredients.

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