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Top view of keto mug cake in a white mug

Banana Mug Cake

This Banana Mug Cake bakes up in the microwave in just one minute with simple pantry staples. It's the perfect low carb, paleo vegan cake that will satisfy any sweet tooth craving!

Course Dessert
Cuisine American
Keyword banana mug cake, dessert for one, keto dessert idea, keto mug cake, mug cake, mug cake recipe, paleo mug cake, quick dessert for 1, vegan mug cake
Prep Time 4 minutes
Cook Time 1 minute
Total Time 5 minutes
Servings 1 serving
Calories 289 kcal
Author Kelly


  • 2 tablespoons mashed very ripe banana (about half of a small banana)
  • 2 tablespoons cashew butter , (can also sub with peanut butter, almond butter, tahini or sunbutter)
  • 2 tablespoons coconut sugar OR Lakanto golden monk fruit sweetener
  • 1 teaspoon vanilla extract
  • 4.5 tablespoons super-fine blanched almond flour (you can also sub with 2.5 Tablespoons coconut flour)
  • 2/3 teaspoon gluten-free baking powder
  • 1/2 tsp cinnamon


  • 3/4 teaspoon Lily's no sugar-added chocolate chips OR chopped chocolate


  1. In a large (14 oz) heat-safe mug or (12-14 oz) ramekin, use a small fork or mash a ripe banana. Add the nut butter, coconut sugar and vanilla and stir until smooth.

  2. Add the baking powder, flour, cinnamon and stir until the batter is mixed together and has no clumps. Top with chocolate chips, if desired.


  1. Place mug on a small plate (in case of spillage) and microwave for about **65-75 seconds. Check on the cake to see that it's done. (You may need to microwave for less or an additional 5-10 seconds depending on how powerful your microwave is.)

  2. Serve with coconut whipped cream, melted chocolate, berries or chopped nuts.


  1. Preheat oven to 350 F.

    Lightly coat a large 12 oz ramekin and transfer batter into the ramekin. Bake for 11-14 minutes or until cake is set.

Recipe Notes

**The cook time will vary according to your microwave - check after 45 seconds then pop it back in the microwave in 10 second increments if not done - do not overcook or mug cake will be dry

Nutrition Facts
Banana Mug Cake
Amount Per Serving (1 serving)
Calories 289 Calories from Fat 135
% Daily Value*
Fat 15g23%
Carbohydrates 18g6%
Fiber 6g24%
Protein 7g14%
* Nutrition facts are provided as a courtesy using the WPRM recipe calculator. It is best to make your own calculations to ensure accuracy. We expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website. Percent Daily Values are based on a 2000 calorie diet.