Easy 3-Ingredient Banana Brownies

When the afternoon slump hits and you need a quick chocolate fix that doesn’t derail your healthy eating, 3-Ingredient Banana Brownies deliver just that. These fudgy squares blend the natural sweetness of ripe bananas with the richness of peanut butter and cocoa, creating a treat that’s as simple to make as it is satisfying. No flour, eggs, or added sugar means they’re a guilt-free indulgence for busy days.

I find these brownies perfect for stashing in the fridge for grab-and-go snacks during the week. They hold up well and even taste better after a day or two as the flavors meld. Family members always reach for seconds, making them a reliable dessert that fits right into everyday routines.

Why We Love This Recipe

• Simple Ingredients: These 3-Ingredient Banana Brownies use just pantry basics for fudgy results without extra shopping.
• Quick Prep Time: Ready in under 40 minutes total, ideal for busy schedules and last-minute cravings.
• Healthy Indulgence: Naturally sweetened and vegan, they satisfy chocolate lovers while keeping things nutritious.
• Versatile Treat: Enjoy warm, chilled, or frozen for a flexible dessert that adapts to any meal.

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Ingredients to make 3-Ingredient Banana Brownies

These three straightforward ingredients come together to create a moist, chocolatey batter that’s naturally sweet and nutty. Opting for high-quality, unsweetened cocoa and natural peanut butter elevates the flavor while keeping the recipe wholesome and simple.

• Ripe Bananas – Offer natural sweetness and moisture to bind the batter without needing eggs or flour.
• Creamy Peanut Butter – Provides creaminess and a subtle nutty depth; choose natural varieties for less added oil.
• Cocoa Powder – Delivers intense chocolate flavor; sift it in for a smooth, streak-free mix.

How to Make 3-Ingredient Banana Brownies

Step 1: Prepare the Pan

Preheat your oven to 350°F (180°C) and line a 7-inch by 7-inch square pan with parchment paper, allowing an overhang for easy lifting. This setup ensures the brownies release cleanly after baking. Have all ingredients ready to streamline the process.

Step 2: Mash the Bananas

In a large mixing bowl, thoroughly mash three ripe bananas until they form a very smooth puree. This step releases their natural sweetness and creates the base for the batter. Avoid lumps to ensure even texture throughout.

Step 3: Mix in Peanut Butter

Add the creamy peanut butter to the mashed bananas and stir until fully combined and smooth. The mixture should look creamy and uniform at this point. This incorporates the nutty richness without overworking the batter.

Step 4: Incorporate Cocoa Powder

Sift the cocoa powder into the banana-peanut butter mixture and mix until no streaks remain, forming a consistent brownie batter. Stir gently to preserve the fudgy quality. The batter will thicken slightly as it comes together.

Step 5: Transfer and Bake

Spread the batter evenly into the prepared pan using a spatula. Bake for 22 to 30 minutes, until the top sets but a toothpick inserted comes out with moist crumbs for that fudgy center. Check at 22 minutes to avoid overbaking, as times vary by oven.

Step 6: Cool Completely

Let the brownies cool fully in the pan at room temperature before slicing. This prevents crumbling and allows them to firm up properly. Patience here ensures clean cuts and the best texture.

Pro Tips for Success

• Check Doneness Early: Start testing at 22 minutes to achieve a set top with moist crumbs for ideal fudgy brownies.
• Mash Thoroughly: Ensure bananas are very smooth to avoid lumps that could affect the even chocolate distribution.
• Cool Fully: Allow complete room-temperature cooling to prevent crumbling when you slice into the warm brownies.
• Sift Cocoa: This prevents clumps and ensures a streak-free batter for consistent flavor in every bite.

How to Serve 3-Ingredient Banana Brownies

Garnishes

I often top these with a light dusting of powdered sugar for a subtle sweetness that highlights the fudgy base. Chopped peanuts add a welcome crunch against the soft texture. A few sea salt flakes bring out the chocolate notes beautifully.

Side Dishes

Pair them with fresh fruit like sliced strawberries to balance the richness with bright, juicy flavors. Vanilla ice cream makes for a cozy, creamy contrast on cooler evenings. Greek yogurt on the side offers a tangy, protein-packed complement.

Creative Ways to Present

I like stacking small squares in a mason jar for portable treats that feel special. Cut into triangles and arrange on a platter with berries for an elegant dessert board. Warm them slightly and serve in bowls for a molten, comforting vibe.

Make Ahead and Storage

Storing Leftovers

I keep leftovers in an airtight container at room temperature for up to two days, or in the fridge for a week to maintain freshness. This keeps the fudgy texture intact without drying out. Just cover tightly to preserve moisture.

Freezing

Wrap individual portions in plastic wrap and place in a freezer bag for up to three months. Thaw at room temperature or overnight in the fridge when ready. This method works well for portion control during busy weeks.

Reheating

I reheat slices in the microwave for 10-15 seconds to restore warmth without toughening. For oven reheating, warm at 300°F covered with foil for five minutes to prevent drying. Either way, they regain that soft, fudgy center easily.