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.
4.89 from 18 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, Potassium: 313mg, 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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51 comments on “Low Carb Snickerdoodle Mug Cake”

  1. 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” 🙂

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

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

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

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