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Homemade chocolate banana brownies topped with chocolate chips served on a ceramic plate with milk in a cozy kitchen setting.

Healthy Banana Brownies (3 Ingredient, Flourless)

These fudgy flourless banana brownies need just 3 real ingredients — no refined sugar, no flour, no fuss. Naturally sweet, deeply chocolatey, and ready in under 30 minutes. The perfect healthy baked treat for meal prep or an everyday dessert.
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Prep Time 5 minutes
Cook Time 22 minutes
Cooling Time 20 minutes
Total Time 27 minutes
Servings: 9 brownies
Course: Dessert, Snack
Cuisine: American
Calories: 128
Ingredients Equipment Method Notes

Ingredients
  

Main Ingredients
  • 2 very ripe bananas Large, fully spotted or almost black peels — the riper the better
  • 1/2 cup natural almond butter Runny and unsweetened (about 130g). Peanut butter or any nut/seed butter also works
  • 1/4 cup unsweetened cocoa powder Sifted. Cacao powder works great too
Optional Add-ins
  • 1 pinch sea salt Rounds out the chocolate flavor
  • 1/2 tsp pure vanilla extract Optional but recommended
  • 2 tbsp mini dark chocolate chips For double chocolate variation — fold in before baking

Equipment

  • Large mixing bowl
  • Fork
  • 8x8 inch baking pan
  • Parchment paper
  • spatula

Method
 

  1. Preheat your oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper, letting the edges overhang so you can lift the brownies out cleanly after baking.
  2. In a large bowl, mash the ripe bananas with a fork until completely smooth — no lumps. You want something close to a banana purée. This step is the base and the sweetener, so take your time here.
  3. Add the almond butter to the mashed bananas and stir well until fully combined. The mixture will look thick and slightly gluey at this stage — that is completely normal.
  4. Sift in the cocoa powder. Stir until the batter is uniformly dark and glossy. If using, add the pinch of salt and vanilla extract now. Fold in chocolate chips if making the double chocolate version.
  5. Pour the batter into the prepared pan. It will be thick — use the back of a spoon or spatula to spread it evenly into all corners.
  6. Bake for 20 to 22 minutes, until the edges are set and the center looks just slightly underdone. Do not overbake — the brownies will continue to firm up as they cool.
  7. Let the brownies cool in the pan for at least 20 minutes before cutting. This cooling time is essential. Lift out using the parchment overhang and cut into 9 squares.

Notes

Banana ripeness is key: Use deeply spotted or almost black bananas. Yellow bananas will produce bland, starchy brownies.
Do not add liquid sweetener (maple syrup, honey) — it makes the batter too wet to set properly.
Weight tip: 130g of almond butter is the sweet spot. Too little and the brownies dry out; too much and they won't hold shape.
Storage: Room temperature up to 2 days. Fridge in airtight container up to 6 days — texture improves when cold. Freeze individual squares wrapped in parchment for up to 2 months; thaw 15 minutes at room temperature.
Variations: Add ½ tsp instant espresso powder for an espresso brownie. Use sunflower seed butter for nut-free (skip baking soda — it causes a green reaction). Swirl 2 tbsp peanut butter on top before baking for a peanut butter version.