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+ servings

Negative Calorie Chocolate Cake

I always make this with Betty Crocker Super Moist Cake Mix Dark Chocolate (the one with a Hershey's logo on it). I'm sure it will taste just as good with other brands of cake mix, but this is my preference. The ingredients below are based on the back of the box (with the exception of the banana) If you use a different brand of cake mix, follow their instructions for ingredients, replacing the banana for the oil or butter. Of course, if you aren't on a diet - ditch the banana idea and just use the oil/butter as the recipe calls for.
2 from 22 votes
Prep Time 5 mins
Cook Time 6 mins
Total Time 11 mins
Course Dessert
Cuisine American
Servings 6 people


  • 1 box Betty Crocker SuperMoist Cake Mix Dark Chocolate
  • 1 very ripe banana smushed well with a fork
  • 3 eggs
  • 1 1/3 cups water
  • Cooking spray to spray the ramekins


  • In large bowl, mixed together the smushed banana, eggs and water. Whisk until combined.
  • Stir in cake mix - stir vigorously for a couple of minutes until well mixed.
  • Spray ramekins with cooking spray. Pour batter into ramekins up to 2/3 full.
  • Every microwave is different - here are some guidelines:
  • -For 2 ramekins: microwave on MEDIUM-HIGH (I set my microwave on power strength 8 ) for 5 minutes
    -For 3-4 ramekins: 6 minutes
    -For 5-6 ramekins: 7 minutes
  • Check with toothpick to see if cake is done. Mushy cake mix stuck to toothpick? Add another 30 seconds. Cake crumbs on toothpick? Done.
  • Top with warm chocolate sauce, reduced pomegranate juice, fresh raspberries or a sprinkling of powdered sugar (or all of the above!)


Note on the banana: It should be a super-ripe brownish banana...like in the photo above. If you don't have a super ripe banana, quickly ripen your banana in the microwave! *Read full blog post for the full how to!  
Note on the microwave times: Each microwave is different. Use the times listed in the recipe and test with a toothpick. Just note your final time so that you won't have to check for doneness next time! 
You'll need about 4-6 small, individual serving sized ramekins.
Keyword Cake, chocolate cake, Easy Recipe, microwave, Microwave Recipes, Mug Cake
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