These Banana Brownies recipe are incredibly fudgy and rich in chocolate flavor. Combining peanut butter and cocoa powder, these healthy treats are not only vegan but also free from sugar and gluten!

While grocery shopping last week, I found bananas on sale and, of course, bought a lot—probably too many. This led to a bunch of overripe bananas.
Initially torn between making protein pancakes or protein banana bread, I ended up using the bananas to create these simple 3-ingredient Banana Brownies.

Why you’ll love these banana brownies?
While most of my banana-based recipes call for 3 ripe bananas, this one is perfect if you only have 2 ripe bananas available. Alternatively, you can make a smaller batch using just 1 banana.
The process is simple, much like my other brownie recipes, with the addition of mashed bananas.
These brownies are quick to prepare, incredibly easy to make, and versatile. Plus, they can easily be adapted to be dairy-free and gluten-free if needed.
Ingredients for Banana Brownies (Flourless)
This flourless Banana Brownie recipe uses just 3 simple ingredients.
- Bananas: 3 medium-sized ripe bananas. Look for bananas with dark spots or brown bananas— the riper, the better.
- Peanut Butter: Creamy peanut butter works best, preferably without added sugars, oils, or salt.
- Cocoa Powder: For healthier brownies, choose natural cocoa powder with no added sugars.
Optional Add-Ins
While the basic flourless Banana Brownie recipe requires only 3 ingredients, you can always add extras. Consider mixing in chocolate chips, walnuts, or a pinch of salt to enhance the flavor. Feel free to customize this recipe however you like!
How to Make Banana Brownies
Making these 3-ingredient Banana Brownies Recipe is incredibly easy. The process is so quick that you’ll barely notice you’re making brownies.
Step 1: In a large bowl, mash 3 ripe bananas. Once they’re fully mashed, stir in the peanut butter until the mixture is smooth. Sift in the cocoa powder, mix everything well, and transfer the batter to a brownie pan lined with parchment paper.
Step 2: Bake the Banana Brownies in a preheated oven for 22 to 30 minutes (mine took 27 minutes). Let the brownies cool completely at room temperature before slicing and serving.
How to Store Banana Brownies
- After baking, allow the flourless Banana Brownies to cool at room temperature. Once cooled, store them in an airtight container at room temperature for up to 3 days. Alternatively, refrigerate them for up to 5 days.
- For longer storage, freeze these 3-ingredient Banana Brownies in an airtight container or a freezer bag for up to 3 months. When ready to enjoy, simply reheat them in a hot oven for a few minutes.
FAQ – Frequently asked questions
Can I Use Frozen Bananas?
Yes, frozen bananas work well in a banana brownie recipe! Simply thaw the bananas completely, then drain any excess liquid before mashing. Since frozen bananas release more moisture, this step is crucial to prevent a watery batter.
How to Make Nut-Free Banana Brownies
To make nut-free flourless Banana Brownies, simply replace peanut butter with sunflower seed butter or tahini. Keep in mind that the flavor may change slightly.
Can I Add Protein Powder?
Yes, you can add a scoop of protein powder to the batter. Just be sure to adjust the consistency with one or two tablespoons of milk.
Can I Use an Air Fryer for 3-Ingredient Brownies?
Absolutely! This 3-ingredient Banana Brownie recipe can be made in the air fryer. Preheat your air fryer to 150°C (340°F) and bake the brownies for 15 to 22 minutes.
Can I Make Flourless Banana Brownies in the Microwave?
Unfortunately, this recipe does not work in the microwave. For the best results, use an oven or air fryer to bake the flourless Banana Brownies.
Tips for Making the Perfect Flourless Banana Brownies
Here are some helpful tips for creating the best Banana Brownies Recipe:
- Avoid overbaking. The brownies will continue to set as they cool.
- Use overripe bananas for the best flavor and texture.
- Mash the bananas thoroughly until smooth.
- Choose creamy peanut butter for a better mix.
- Stir the mashed bananas with peanut butter well before adding the cocoa powder.
For more dessert ideas, you can check out the Simple Banana Pudding Recipe if you’re in the mood for another banana treat!
More Healthy Brownie Recipes
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Delicious Banana Brownies: The Best Brownie Recipe with 3 Ingredients
These Banana Brownies are rich, fudgy, and packed with chocolate flavor. Made with peanut butter and cocoa powder, they’re a healthy treat that’s also vegan, gluten-free, and sugar-free!
- Total Time: 35 minutes
- Yield: 6 servings 1x
Ingredients
- 3 ripe banana
- 120 grams creamy peanut butter (1/2 cup)
- 50 grams cocoa powder (1/2 cup)
Instructions
- Preheat your oven to 180°C (350°F) and line a 15 cm x 15 cm (7 inch x 7 inch) brownie pan with parchment paper.
- In a large bowl, mash 3 ripe bananas until smooth. Once mashed, add peanut butter and mix until the batter is smooth and well combined.
- Sift in the cocoa powder, stir, and then transfer the mixture into the prepared pan.
- Bake the Banana Brownies in the preheated oven for 22 to 30 minutes (mine took 27 minutes). Allow the brownies to cool completely at room temperature before slicing.
Notes
- You can adjust the sweetness of the brownies by adding chocolate chips or a pinch of salt.
- For nut-free brownies, swap peanut butter with sunflower seed butter or tahini.
- These brownies can also be stored in the fridge for up to 5 days or frozen for up to 3 months.
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 6 servings
- Calories: 140.53kcal
- Sugar: 6.71g
- Sodium: 75.19mg
- Fat: 8.76g
- Saturated Fat: 2.03g
- Carbohydrates: 14.86g
- Fiber: 3.25g
- Protein: 5.21g
Keywords: Banana Brownies, Healthy Banana Brownies, 3-Ingredient Brownies, Peanut Butter Brownies, Flourless Brownies, Easy Brownie Recipe, Vegan Banana Brownies, Sugar-Free Brownies