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

Prep Time: 5 minutes
Cook Time: 2 minutes
Course: Dessert
Cuisine: American
Servings: 1

A low carb cinnamon cake that tastes like snickerdoodle cookie in cake form.



  • 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


  1. 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.

  2. In a small bowl, add topping ingredients. Whisk until evenly blended. Sprinkle over surface of cake.
  3. 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.

Recipe Video


  • 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
Nutrition Facts
Low Carb Snickerdoodle Mug Cake
Amount Per Serving (1 cake)
Calories 312 Calories from Fat 243
% Daily Value*
Fat 27g42%
Saturated Fat 9g56%
Cholesterol 194mg65%
Sodium 67mg3%
Potassium 313mg9%
Carbohydrates 7g2%
Fiber 3g13%
Sugar 1g1%
Protein 10g20%
Vitamin A 590IU12%
Calcium 190mg19%
Iron 1.8mg10%
Net Carbs 4g8%
* Percent Daily Values are based on a 2000 calorie diet.
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. All images and content are © Kirbie's Cravings.


10 comments on “Low Carb Snickerdoodle Mug Cake”

  1. 312 calories? WOW! Definitely NOT low carb!

  2. 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!

  3. 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!

  4. 5 stars
    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!

  5. 5 stars
    Just made this, Loved it! Only I cooked it in my air fryer 8-10 minutes! Delish

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