3 Ingredient Keto Almond Butter Mug Cake

This low carb keto almond butter mug cake is just 3 ingredients and cooks in the microwave. It’s an easy dessert that is ready in about 5 minutes from start to finish.
photo of a Almond Butter Mug Cake

After creating a keto version of my 3 Ingredient Flourless Peanut Butter Mug Cake, I wanted to create an almond butter version. I personally love almond butter even more than I love peanut butter.

This mug cake is fluffy with a mild nutty almond flavor. I usually add some toppings to my mug cakes, so for this one I decided to mix in some chocolate chips.
overhead photo of a Almond Butter Mug Cake with a spoon scooping out a bite of cake

Choosing a Mug

Use a microwave-safe mug that can hold at least 12 oz of liquid. Something that is between 12-16oz is ideal. The cake rises quite high during cooking before sinking back down after.

I recommend using a standard shaped mug. Mugs that are unusually tall and narrow will cause uneven cooking.

Low Carb Ingredients

  • Instead of sugar, I used Swerve granular sweetener. You can try other sugar substitutes as well, but Swerve has been one of my favorites.
  • For the chocolate chips, I used Lily’s dark chocolate chips which are sugar-free.
  • When choosing an almond butter, look for a natural almond butter that does not have any added sugar. Also, make sure to properly stir and mix the almond butter before using it for the recipe.

Cooking Tips

  • You do not need to grease the mug beforehand. The cake will naturally pull away from the sides as it cools.
  • Make sure to thoroughly whisk the egg into the batter until the batter becomes uniform. Your cake will not cook properly if the egg is not fully incorporated.
  • If you plan on making more than one, cook each one separately. Do not try to cook multiple cakes at once because they will not cook evenly.
  • Microwave powers vary. I cooked mine at full power and I used an 1100 watt microwave. You may need to adjust your cooking time or power accordingly.
  • This mug cake is best eaten right away. Because of the low carb substitutions, it does dry out quicker than my other mug cakes. The chocolate also cools and solidifies faster.

overhead photo of Almond Butter Mug Cake

3 Ingredient Keto Almond Butter Mug Cake

Prep Time: 4 minutes
Cook Time: 1 minute
Total Time: 5 minutes
Course: Dessert
Cuisine: American
Servings: 1

This easy low carb and keto friendly dessert is just three ingredients and cooks in the microwave.

Ingredients:

  • 2 1/2 tbsp almond butter
  • 1 tbsp + 1 tsp Swerve granular sweetener
  • 1 large egg
  • 1 1/2 tbsp Lily's chocolate chips optional

Directions:

  1. In a large microwave-safe mug (holds at least 12 oz of liquid), add almond butter, Swerve and egg. Use a small whisk to mix until egg is compeltely beaten into the batter and the batter becomes smooth and uniform.

  2. If using, stir in 1 tbsp of chocolate chips and sprinkle remaining over surface of batter.
  3. Cook batter in microwave at full power for about 1 minute and 10 seconds. Allow cake to cool slightly before eating. Cake is best consumed warm.

Notes:

  • This cake is not that sweet. If you prefer sweeter desserts, you an add more sugar substitute to the batter or more chocolate chips.
  • I used Swerve granular sweetener.* You can try other substitutes as well, just make sure you add the equivalent of 1 tbsp of sugar. I have also tried this recipe with Swerve confectioners but found that I needed to add a little more Swerve to get the cake sweet enough.
  • For the chocolate chips, I used Lily's dark chocolate chips.*
  • If you plan on making more than one cake, cook each one separately. Do not try to cook multiple cakes at once because they will not cook evenly.
  • Microwave powers vary. I cooked mine at full power and I used a 1100 watt microwave. You may need to adjust your cooking time or power accordingly.
  • This mug cake is best eaten right away. Because of the low carb substitutions, it does dry out quicker than my other mug cakes. The chocolate also cools and solidifies faster.
  • *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 chocolate chips or carbs from erythritol
Nutrition Facts
3 Ingredient Keto Almond Butter Mug Cake
Amount Per Serving
Calories 326 Calories from Fat 243
% Daily Value*
Total Fat 27g 42%
Saturated Fat 3g 15%
Cholesterol 210mg 70%
Sodium 83mg 3%
Potassium 377mg 11%
Total Carbohydrates 8g 3%
Dietary Fiber 4g 16%
Sugars 1g
Protein 15g 30%
Vitamin A 6.1%
Calcium 17.1%
Iron 13.3%
* 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.

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