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Indulge your taste buds while maintaining your keto lifestyle with our delectable Keto Chocolate Banana Brownies. These brownies redefine the meaning of guilt-free pleasure by combining rich, dark chocolate with the natural sweetness of ripe bananas—all without the excess carbs. Sink your teeth into a moist, fudgy, and incredibly satisfying treat that’s perfect for satisfying your chocolate cravings while staying within your keto dietary boundaries. Join us as we unlock the secret to a dessert that’s as decadent as it is keto-friendly.

Course: Dessert

Cuisine: American

Prep Time: 10minutes minutes

Cook Time: 25minutes minutes

Total Time: 35minutes minutes

Servings: 16

Calories: 159kcal


Dry Ingredients

  • 2 cups Almond Flour
  • 1/3 cup Coconut Flour
  • 1/3 cup cocoa powder (sifted before measuring!)
  • 1/2 cup low carb sugar (or Swerve or Lakanto)
  • 2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt

Wet Ingredients

  • 5 oz over-ripe banana (one medium)
  • 1 teaspoon vanilla
  • 1/4 teaspoon maple extract
  • 1/4 teaspoon banana extract (or almond or chocolate)
  • 1/2 teaspoon stevia glycerite
  • 3 large eggs
  • 1/4 cup full fat coconut milk
  • 1 tablespoon vinegar

Optional Ingredients shown in photo

  • 1/2 cup walnuts
  • 3 tablespoons Lili’s Sugar-free Chocolate Chips or your favorite low sugar chocolate




  • Preheat the oven to 350 and position the rack in the lower third of the oven.  Chop the nuts.
  • Spray a 9 x 9 inch square metal brownie pan with cooking spray. Cut a piece of parchment paper wide enough to cover the bottom of the pan, come up the sides and drape over. Position it in the pan.


  • Before measuring the dry ingredients, fluff them up with a whisk to remove any lumps and sift the coco powder before measure. Lumps indicate compaction and you will end up using more than called for in the recipe.  (SEE NOTES)
  • Measure and add the dry ingredients to a medium bowl and whisk together until combined. Add 2/3 of the nuts, stirring them in. In a smaller bowl, mash the banana with a fork – then add the flavorings, the eggs one-by-one, the coconut milk, and vinegar mixing in between additions. Scrape into the bowl with the dry ingredients and mix with a hand mixer until completely incorporated.
  • With a spoon, place the batter evenly around the brownie pan. With the back of the spoon, gently distribute the batter in the pan – it is very thick and you will not be able to distribute it evenly with the spoon. Cut a piece of waxed paper and spray it with baking spray. Lay it over the batter and VERY GENTLY, with a sliding motion, use your fingers and hands to distribute the batter as evenly as you can. It just takes a minute and it won’t be perfect — don’t worry, it will fill-in as it cooks. Add the rest of the nuts and all of the chocolate to the top, barely pressing them into the batter.


  • Place in the oven and cook for about 25 minutes. The chocolate banana brownies are ready when the top feels springy, but not soggy and wet, when lightly pressed with a finger.
  • Cut into 16 servings. Each brownie is 5 net carbs. 


Here are some tips to avoid dry brownies:

  1. Cocoa powder needs to be sifted. Often times when bringing it home from the store, it is caked together so tightly that one needs to scrape it out with a spoon, resulting in clumps of compacted product. This leads to using much more cocoa than a recipe calls for. I break up and sift cocoa from the store and either put it back in the same container or put it into a different air tight container. Actually, I buy good cocoa powder from King Arthur’s flour (Black cocoa, and Bensdorp/red cocoa) and I mix them 1:1 or 1:2. This results in a dark and complex cocoa that tastes exactly like dark chocolate with some smokey overtones. It’s what I used in this recipe and why they are so dark in color.
  2. Again, ingredient compaction. Make sure to whisk to fluff-up any low carb flour before measuring. Almond flour and particularly coconut flour tend to form clumps. Measuring compacted ingredients leads to over-measuring and, in the case of coconut flour which absorbs so much moisture, leads to dry baked goods.
  1. Glass baking dishes require the temperature to be lowered 20 degrees F. They take longer to heat, but also hold onto heat for a much longer period of time. This means that baked goods continues to cook for a while they cool outside of the oven. If I use a glass baking dish, I make sure to take my goodies out of the oven just before they are done. Sometimes this leads to mild sinking in the middle. I find that glass baking dishes are famous for producing baked goods with overdone sides and underdone middles.
  2. This recipe was cooked in a large (25 year old) gas oven. I have found that electric ovens, especially smaller wall ovens, require a slight decrease in temperature or shorter cook time. I have a new electric oven and have had to adjust baking times when making recipes I had tested in my older oven.


Calories: 159kcal | Carbohydrates: 9g | Protein: 6g | Fat: 12g | Saturated Fat: 2g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 6g | Cholesterol: 40mg | Sodium: 213mg | Potassium: 225mg | Fiber: 4g | Vitamin A: 50IU | Vitamin C: 0.8mg | Calcium: 100mg | Iron: 1.1mg