Banana Bread Mug Cake (Paleo)

Single serving paleo banana bread mug cake made in the microwave. This cake cooks in about 2 minutes and tastes like fluffy banana bread.
photo of Banana Bread Mug Cake

I’ve made a lot of baked goods with bananas, like my Peanut Butter Banana Chocolate Chip Muffins, but I love this banana mug cake because it satisfies my craving for banana bread while also providing portion control. When it comes to banana bread, I can eat half of a freshly baked loaf in one sitting.

So for my next paleo mug cake recipe, I decided to tackle banana bread.
close-up photo of Banana Bread Mug Cake
This mug cake is fluffy and light. Because bananas are naturally sweet, I only used a little bit of sweetener. I also added walnuts because banana bread just doesn’t taste the same to me without walnuts.
overhead photo of Banana Bread Mug Cake

Banana Bread Mug Cake (Paleo)

Prep Time: 10 minutes
Cook Time: 2 minutes
Total Time: 12 minutes
Course: Dessert
Cuisine: American
Servings: 1
A single serving banana cake that is also paleo and gluten free.


  • 4 tbsp mashed ripe banana about 64 grams weighted; approximately 1 small banana
  • 2 tbsp coconut flour
  • 1/4 tsp baking powder  please note commercial baking powder is not paleo so you may need to make your own homemade paleo baking powder
  • 1/8 tsp cinnamon
  • 1 large egg
  • 1 tsp olive oil
  • 1 tsp maple syrup
  • 2 tbsp almond milk
  • 1 tbsp chopped walnuts


  1. In a microwave-safe mug, add all ingredients except walnuts. Whisk until batter is smooth. Stir in walnuts.
  2. Cook in the microwave at full power for about 2 minutes or until cake is cooked. Allow cake to cool a few minutes before eating. The banana flavor will be more prominent if you allow the cake to cool for about 15-20 minutes.


  • This recipe works best with overripe bananas. Make sure to mash them as much as possible. Also keep in mind that 4 tbsp of mashed bananas is more than just 4 tbsp of bananas, so make sure to measure after the bananas have been mashed.
Nutrition Facts
Banana Bread Mug Cake (Paleo)
Amount Per Serving (1 mug cake)
Calories 304 Calories from Fat 148
% Daily Value*
Fat 16.4g25%
Saturated Fat 3.7g23%
Polyunsaturated Fat 5.1g
Monounsaturated Fat 6.1g
Cholesterol 186mg62%
Sodium 158.3mg7%
Carbohydrates 30.9g10%
Fiber 7.4g31%
Sugar 15.3g17%
Protein 11.3g23%
Vitamin A 300IU6%
Vitamin C 7.4mg9%
Calcium 170mg17%
Iron 2.5mg14%
Net Carbs 24g48%
* 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.

8 comments on “Banana Bread Mug Cake (Paleo)”

  1. Yum! This was good! Swapped the walnuts for dark chocolate chips, and that was also good! Thanks for the recipe!

  2. can skim milk or 2% be used instead of almond milk?

  3. Would this recipe work with almond flour instead of coconut flour?

    • Not as a direct substitute. You would have to adjust the liquid measurements and without testing it, I don’t know what those adjustments would be.

  4. 5 stars
    Just tried this without baking powder. It was great! It didn’t rise much, but was still good. I topped with non-dairy whipped cream cold bananas and walnuts. Delish! Thank you for sharing the recipe. ?

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