These 4 Ingredient Brownies are rich, fudgy, and incredibly easy to make! With simple pantry ingredients like ripe bananas, peanut butter, cocoa powder, and flour, you can create a naturally sweet chocolate dessert that tastes indulgent but is surprisingly wholesome!

4 ingredient brownies.

The bananas provide natural sweetness and moisture, while peanut butter adds richness and protein. Cocoa powder delivers deep chocolate flavor, and the flour helps create that classic brownie texture.

These brownies are soft, gooey in the center, and packed with chocolate flavor in every bite. They are perfect when you want a quick dessert with easy ingredients. Try my 5 Ingredient Brownies too!

Why You Will Love These 4 Ingredient Brownies

  • Only four simple ingredients
  • Naturally sweetened with bananas
  • Gluten free option available
  • Rich chocolate flavor
  • One bowl recipe
  • Ready in about 30 minutes
Sliced fudgy brownies.

Ingredients

  • 2 ½ cups mashed ripe bananas
  • 1 ½ cups all natural creamy peanut butter
  • ⅓ cup dark cocoa powder
  • ½ cup gluten free flour, see note
  • 1 cup dark chocolate chips, optional but recommended

Ingredient Role Table

IngredientPurpose
BananasProvides natural sweetness, moisture, and acts as a binder.
Peanut ButterAdds healthy fats, protein, and essential structure/density.
Cocoa PowderDelivers a deep, rich chocolate flavor and color.
FlourThe primary agent that gives the brownies their crumb and structure.
Chocolate ChipsCreates molten “pockets” of extra chocolate throughout.

How to Make

  • First, preheat your oven to 350 degrees Fahrenheit. Line an 8 inch square pan with parchment paper.
  • In a mixing bowl, combine the mashed bananas, peanut butter, cocoa powder, and gluten free flour. Stir until a dough is formed.
  • Fold in the chocolate chips.
  • Transfer this mixture into the lined pan. Smooth into an even layer.
  • Bake for 18 to 21 minutes, or until a toothpick inserted comes out with only a few moist crumbs.
  • Finally, remove these 4 ingredient brownies from the oven. Allow them to cool before slicing.

Tips for Perfect Brownies

Use very ripe bananas for the best sweetness.

Choose natural peanut butter made only with peanuts and salt.

Do not over bake. The center should look slightly soft.

Let the 4 ingredient brownies cool before cutting so they set properly.

Ingredient Substitutions

Original IngredientRecommended ReplacementBest For…
Peanut ButterAlmond butter or cashew butterMaintaining that creamy texture and healthy fat content.
Gluten-Free FlourAll-purpose flourTraditional baking (if gluten is not a dietary concern).
BananasUnsweetened applesauceAdding moisture with a more neutral flavor profile.
Chocolate ChipsChopped dark chocolateAchieving more rustic, irregular “pools” of chocolate.
Double chocolate dessert bars.

Flavor Variations

Chocolate Walnut Brownies

Add 1/2 cup chopped walnuts.

Extra Chocolate Brownies

Use dark chocolate chunks instead of chips.

Protein Brownies

Add 2 tablespoons chocolate protein powder.

Sea Salt Brownies

Sprinkle flaky sea salt on top before baking.

How to Store Brownies

Room temperature

Store in an airtight container for up to 2 days.

Refrigerator

Store for up to 5 days.

Freezer

Freeze sliced brownies for up to 2 months.

Frequently Asked Questions

Why are my brownies too soft?

This usually means they are under baked. Let them cool completely so they firm up.

Can I make these brownies vegan?

Yes. This recipe is naturally vegan if using dairy free chocolate chips.

Can I use almond butter?

Yes. Almond butter or cashew butter works well.

Are these brownies gluten free?

Yes if using gluten free flour.

Close up of 4 ingredient brownies.

You May Also Like

If you make this 4 ingredient brownie recipe, I would really appreciate a review! You can find me on InstagramFacebook, and Pinterest. I would love for you to follow along!  For more ideas, check out these Dessert Recipes.

4 ingredient brownies.

Get the Recipe: 4 Ingredient Brownies

So soft and gooey! These brownies have a deep chocolate flavor and a smooth texture. Made with simple ingredients like bananas and peanut butter, they stay moist and rich. A healthy, sweet treat that everyone will love. Simply wonderful.
4 from 2 votes

Ingredients

Instructions 

  • First, preheat your oven to 350 degrees Fahrenheit. Line an 8 inch square pan with parchment paper.
  • In a mixing bowl, combine the mashed bananas, peanut butter, cocoa powder, and gluten free flour. Stir until a dough is formed.
  • Fold in the chocolate chips.
  • Transfer this mixture into the lined pan. Smooth into an even layer.
  • Bake for 18 to 21 minutes, or until a toothpick inserted comes out with only a few moist crumbs.
  • Finally, remove these protein brownies from the oven. Allow them to cool before slicing.

Notes

  • If you are not gluten free, feel free to use all purpose flour.
  • Use all natural creamy peanut butter. It should be made from only peanuts and salt.
  • If desired, replace with all natural almond butter or cashew butter.
  • Use ripe bananas for best results.
  • Bake only until the middle looks barely set. These brownies are meant to be gooey.
  • Store brownies in an airtight container at room temperature for up to 2 days.
  • Then, store in the fridge or freezer.
Calories: 357kcal, Carbohydrates: 38g, Protein: 11g, Fat: 29g, Saturated Fat: 9g, Polyunsaturated Fat: 5g, Monounsaturated Fat: 11g, Sodium: 186mg, Potassium: 440mg, Fiber: 6g, Sugar: 10g, Vitamin A: 27IU, Vitamin C: 4mg, Calcium: 32mg, Iron: 2mg