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4.83 from 17 votes

Keto Blueberry Mug Cake

A light and fluffy vanilla mug cake studded with blueberries. This cake is also low carb and keto-friendly.
Servings: 1
Prep Time: 4 minutes
Cook Time: 2 minutes
Total Time: 6 minutes
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Ingredients

  • 1 tbsp unsalted butter, melted
  • 2 tbsp heavy cream, see note for substitutes
  • 3/4 tsp vanilla
  • 1 large egg
  • 2 tbsp coconut flour
  • 1 tbsp erythritol sweetener granular
  • 1/4 tsp baking powder
  • 6-8 fresh blueberries

Instructions
 

  • In a microwave-safe oversized mug, add all ingredients except blueberries.
  • Mix with a small whisk until batter is evenly mixed. Gently place blueberries on top.
  • Cook cake in the microwave at full power for about 1 minute and 40 seconds. Allow the cake to cool a few minutes before eating.

Notes

  • I use an 1100 watt microwave. You may need to adjust time and/or power if you are using a different wattage.
  • The cake works best with heavy cream but if you don't have heavy cream, you can use coconut cream or whole milk. Your cake won't be as rich and fluffy using regular milk but it will still work.
  • I used So Nourished Erythritol Sweetener Granular.*
  • Erythritol sweetener granular can be substitued with swerve granular or similar granular sweeteners.
  • This cake rises quite high while it cooks and then will sink back down. I cooked mine in a 16 oz mug and then plated it in an 8 oz mug.
  • *Some of the 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: 361kcal, Carbohydrates: 11g, Protein: 10g, Fat: 30g, Saturated Fat: 18g, Sodium: 124mg, Fiber: 5g, Sugar: 2g, NET CARBS: 6
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.
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