Kirbie's Cravings

Low Carb Snickerdoodle Mug Cake

A fluffy cinnamon cake that tastes like a snickerdoodle cookie in cake form. This easy single serving cake cooks in the microwave and is gluten free, low carb and keto friendly.
photo of a Low Carb Snickerdoodle Mug Cake

Earlier this year I created an easy and tasty snickerdoodle mug cake. Now I’m sharing a low carb version. This cake is flavored with cinnamon and then topped with cinnamon and “sugar” to really feel like a snickerdoodle.
overhead photo of a spoon scooping some snickerdoodle mug cake

How to Make a Snickerdoodle Mug Cake

  • You will need a microwave-safe mug that can hold at least 12 oz of liquid because the cake will rise quite high while it is cooking.
  • All the ingredients are mixed together with a small whisk until the batter is smooth. The batter is then topped with a cinnamon sugar coating, much like the finish for a snickerdoodle cookie.
  • The cake cooks at full power in the microwave for about 90 seconds. I use an 1100 watt microwave. You may need to adjust time and/or power if you are using a different wattage.

Low Carb Ingredients

  • Instead of wheat flour, this cake is made with superfine almond flour.
  • For the sugar alternative, I used erythritol sweetener granular. It looks just like granular sugar and melts well into the batter.

close-up photo of a spoonful of snickerdoodle mug cake
If you like this mug cake, I have several other low carb mug cakes including a keto chocolate chip mug cake and 3 ingredient keto peanut butter mug cake.

Recipe now updated with video! You can also find all my recipe videos on my youtube channel.

Low Carb Snickerdoodle Mug Cake

Servings: 1
Prep Time: 5 minutes
Cook Time: 2 minutes
Course: Dessert
Cuisine: American
A low carb cinnamon cake that tastes like snickerdoodle cookie in cake form.
4.90 from 19 votes



  • 1 tbsp unsalted butter melted
  • 1 large egg
  • 3 tbsp superfine almond flour
  • 1/2 tsp baking powder
  • 1 tbsp + 1 tsp erythritol sweetener granular
  • 1/2 tsp vanilla
  • 1/2 tsp cinnamon

Cinnamon Sugar Topping

  • 1/16 tsp ground cinnamon
  • 1/4 tbsp erythritol sweetener granular


  • In a microwave-safe mug (that can hold at least 12 oz of liquid), add all cake ingredients. Mix with a small whisk until batter is smooth.
  • In a small bowl, add topping ingredients. Whisk until evenly blended. Sprinkle over surface of cake.
  • Cook cake in microwave at full power for about 1 minute 30 seconds. Be careful to not overcook the cake because that will cause the cake to be dry when it cools. Allow the cake to cool a few minutes before eating.



  • I use an 1100 watt microwave. You may need to adjust time and/or power if you are using a different wattage.
  • I used Kirkland Signature superfine almond flour.*
  • I used So Nourished Erythritol Sweetener Granular.*
  • *Some of the product links contained in this post are affiliate links. Much like referral codes, this means I earn a small commission if you purchase a product I referred (at no extra charge to you).
  • Estimated Nutrition Information does not include carbs from erythritol


Serving: 1cake, Calories: 312kcal, Carbohydrates: 7g, Protein: 10g, Fat: 27g, Saturated Fat: 9g, Sodium: 67mg, Fiber: 3g, Sugar: 1g, NET CARBS: 4g

The nutrition information provided are only estimates based on an online nutritional calculator. I am not a certified nutritionist. Please consult a professional nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.

Did you make this recipe?I'd love to see it! Mention @KirbieCravings and tag #kirbiecravings!


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Recipe Rating

55 comments on “Low Carb Snickerdoodle Mug Cake”

  1. Tried the snickerdoodle mug cake and it was very delicious except for I forgot to add the erythritol granulated sweetener (well I used splenda that’s all I had) to the cake mix so it wasn’t sweet but was still pretty good!

  2. this was just what i needed! I’ve been keto two weeks now, not long i know but I was craving something sweet and this delivered. I used granulated monk fruit for the sweetner. Thanks so much all the measurements were spot on. I will make again.

  3. I’ve made this numerous times and love it every time!  So easy and delicious.  This is my husband’s favorite as well and he’s a bit picky when it comes to keto recipes. It’s what we call a “make again-er” 🙂

  4. The best mug cake I’ve ever made. Awesome. Helps meet those “I need something sweet” times and yet remain on Keto.

  5. This is probably the most cakelike mug cake I’ve ever made. Very tasty and would be delish with some sugar free whipped cream 😛

  6. So good!  I’ve tried several keto mug cakes and this is my favorite!  Well done and thanks for sharing!

  7. I love snickerdoodle cookies, but being keto for the past six months, I haven’t made any of those wonderful cookies. I’ll definitely make this mug cake today (after I’ve had some sleep), but will use ghee in place of the butter, having a severe allergy to all milk-laden dairy. I’m looking forward to the cake 🙂

  8. I have a terrible sweet tooth so being able to whip this up so quick and enjoy on keto was an absolute treat! It was so delicious thank you so much! 

  9. Can you bake these in the oven?

  10. Hi! Is monk fruit sweetener with erythrotol  equivalent do you think?

  11. This is really good. I will make again and again.

  12. Oh so good!! Quick and easy to make! The cake was done before I had cleaned up the few dishes I had made making this delightful treat! Thank you!

  13. Good taste, no outlandish ingredients – everything most people on keto will have. Keto cake just isn’t regular cake – set your expectations for keto and you won’t be disappointed. Topped mine with a little whipped cream – hit the spot!

  14. Love it! Thank you for this quick and delicious treat.

  15. Yummy thank you 

  16. This is the first “dessert” I’ve had since starting keto. 5 stars thank you!! 

  17. Snicker Doodles are one of my favorites, so I couldn’t wait to try this recipe.  It did not disappoint!  Yummy

  18. I truly enjoyed this. Kudos to you??????

  19. Love this cake! The fact that it does not call for coconut flour is wonderful! I find it gives everything a “wet” texture. This will be my “go-to” quick recipe when my sweet tooth needs satisfying! Thanks so much for sharing! 

  20. Can you use stevia as a sugar replacement?

    • I have not tried but I think that should be fine. You will likely have to reduce the amount used since stevia tends to be a lot sweeter.

  21. I love snickerdoodle cookies and this is a delicious alternative. Thank you!

  22. Just made this, Loved it! Only I cooked it in my air fryer 8-10 minutes! Delish

  23. My 6YO loved this so much she made me come back and give it a 5-star rating! She is right! Clicked to the peanut butter mug cake and loved that too! I already saw several more recipes I can’t wait to try!

  24. I’ve had horrible luck with low carb mug cakes. Got desperate and saw this online. Thought okay I’ll try again…oh my gosh this is so great! Thank you so much!

  25. This was such a special recipe for me because I used to make Snickerdoodles for my children. I love the taste and the texture, and it’s rare to find both in a low-carb recipe. Combine that with quick, easy, and made from ingredients that most of us have on hand, and you have a real winner here!

  26. 312 calories? WOW! Definitely NOT low carb!