When that cinnamon-sugar craving hits but you're committed to staying low carb, this keto snickerdoodle mug cake will become your new best friend. It's soft, buttery, packed with warm cinnamon flavor, and ready in just minutes. No oven. No complicated steps. No blowing your carbs for the day.
Nothing is better than a 5 minute keto dessert.
Whether you need a quick weeknight dessert, a cozy afternoon treat, or something sweet after dinner, this single-serve keto mug cake delivers all the nostalgic snickerdoodle vibes.
Why You'll Love This Keto Mug Cake
- Ready in about 5 minutes
- Made with simple pantry ingredients
- Low carb and gluten-free
- Perfect single serving (no leftovers calling your name!)
- That classic cinnamon-sugar flavor
It's basically comfort food in a mug.
Tips for the Perfect Mug Cake
- Don't overcook - it dries out quickly. Start with 60 seconds and add more time if needed.
- If you want it extra gooey, slightly undercook it.
- For a richer flavor, add a tiny pinch of cream of tartar for that classic snickerdoodle tang.
- Want it dairy-free? Swap butter for coconut oil.
Optional Add-Ins
- A spoonful of cream cheese in the center before cooking
- Sugar-free white chocolate chips
- A drizzle of keto caramel sauce
- A dollop of whipped heavy cream on top
If you try this keto snickerdoodle mug cake, let me know how it turned out! It's proof that staying low carb doesn't mean giving up cozy, comforting desserts.
Recipe Card
Keto Snickerdoodle Mug Cake
Ingredients
- 1 tablespoon butter
- 3 tablespoons almond flour (click to see my favorite)
- 2 tablespoons sugar free granulated sweetener (click to see my favorite)
- 1 large egg, beaten
- ½ teaspoon baking powder
- ½ teaspoon cinnamon
- Splash of vanilla extract
Method
- In a microwave-safe mug or ramekin, microwave the butter for 10 seconds to melt it. Swirl the butter around the inside of the mug to grease the sides. (leave the remaining butter as it is part of the batter.)
- Add the almond flour, sweetener, egg, baking powder, cinnamon, and vanilla. Whisk well until combined.
- Microwave on high for 60 seconds. Let stand in the microwave for 1 minute before removing. If you like, invert the cake onto a plate or enjoy it right in the mug. Sprinkle with extra cinnamon and powdered sweetener for garnish, if desired.
Jeanne Stroup says
I’m curious about the carb count, when I put it in my net diary, it came out a lot more carbs using 2 tablespoons of the monk fruit sweetener. I have the same type that you recommended. Please advise.
Jennifer Banz says
Monk fruit sweetener should be zero carbs.
Jeanne Stroup says
Well, I am apparently missing something, the link for the type you like, shows 8 carbs per two teaspoons. Can you post a picture of your bag nutrition facts because I’m apparently not looking at this correctly. I would desperately like to find the monk fruit you show as zero carbs. I even went to the store and looked at every bag and it all showed 7-8 carbs per 2 tsp.
Jennifer Banz says
Those carbohydrates are sugar alcohols and are not included because our body does not process it.
Jeanne says
Loved it, however when I put it in MyNetDiary it showed the carb count way higher. I used the exact same sweetener but with 2 tablespoons it showed carbs at 29 grams. Please advise
Cindy says
I absolutely loved the keto snickerdoodle mug cake. I was shocked at how delicious and satisfying it was...the taste was spot on!!
Thank you!
Cindy
Liane says
I tried this mug cake right away, as I was craving something. It is really good. Thanks for this recipe
Dawna says
This looks yummy and perfect since my stove is disconnected due to a kitchen remodel. I am going to make this. Thank you