If you love the comforting flavors of banana bread but also crave the fudgy, rich experience of brownies, you are going to adore this Banana Bread Brownies Recipe. It beautifully merges the moist, fruity goodness of ripe bananas with the sweet, dense texture you expect from a brownie, resulting in a dessert that feels like a warm hug in every bite. Whether you want to impress guests or treat yourself after a long day, this recipe will quickly become a treasured favorite in your baking repertoire.

Ingredients You’ll Need
This Banana Bread Brownies Recipe relies on straightforward, wholesome ingredients that work together to create its heavenly flavor and texture. Each item adds something special — from the natural sweetness and moisture of bananas to the creamy tang of sour cream and the soft crumb achieved through proper leavening.
- 2 eggs: These provide structure and richness, helping the brownies hold together perfectly.
- 3 bananas, mashed: The star of the show, bringing natural sweetness and moisture.
- 1 ½ cups sugar: Sweetens the batter just right while aiding in creating a tender crumb.
- 1 cup sour cream: Adds tang and moistness, making these brownies both dense and soft.
- ½ cup butter, softened: Contributes to richness and a melt-in-your-mouth texture.
- 2 teaspoons vanilla extract: Enhances the overall flavor with warm, sweet notes.
- 2 cups all-purpose flour: Forms the base, yielding a perfect balance between cakey and fudgy.
- 1 teaspoon baking soda: Helps the brownies rise gently for an airy yet dense bite.
- ¾ teaspoon salt: Balances sweetness and deepens flavor.
- ½ cup walnuts, chopped (optional): Adds a delightful crunch and nutty contrast.
- For the frosting:
- ½ cup butter: Browned to add a nutty, caramel-like depth to the frosting.
- 3 cups powdered sugar: Sweetens and thickens the frosting beautifully.
- 1 ½ teaspoons vanilla extract: Intensifies the sweet aroma and flavor.
- 3 tablespoons milk: Creates a smooth, spreadable consistency for easy frosting application.
How to Make Banana Bread Brownies Recipe
Step 1: Preheat the Oven
Start by heating your oven to 375°F (190°C). Grease a 13 x 9 inch baking pan thoroughly to ensure your Banana Bread Brownies Recipe won’t stick when it’s time to enjoy your creation. Properly greased pans make all the difference when it comes to smooth, crack-free edges.
Step 2: Mix the Wet Ingredients
In a large bowl, beat the sugar, sour cream, softened butter, and eggs together until the mixture is smooth and creamy. This step is crucial because it helps aerate the batter slightly, which contributes to the soft texture of your final brownies.
Step 3: Add the Bananas and Vanilla
Fold in your mashed bananas along with the vanilla extract gently to preserve the fluffy texture of the wet mix. The bananas not only enrich the flavor but also work as a natural sweetener, making this recipe feel indulgent yet wholesome.
Step 4: Incorporate the Dry Ingredients
Slowly add the flour, baking soda, and salt to the wet ingredients. Mixing gradually ensures the ingredients combine evenly without overworking the batter, which helps maintain the ideal crumb and softness.
Step 5: Add the Walnuts
If you love that extra crunch, fold in the chopped walnuts now. They add wonderful texture and a slight nuttiness, balancing the sweet, fruity flavors beautifully.
Step 6: Bake
Spread the batter evenly in your prepared pan and bake for approximately 25 minutes. You’ll know your Banana Bread Brownies Recipe is ready when the edges turn golden brown, and a toothpick inserted in the center comes out clean. Keep an eye on it to avoid overbaking — you want those brownies moist, not dry.
Step 7: Prepare the Frosting
While your brownies bake, melt the butter in a saucepan over medium heat until it reaches a lovely medium brown color. This browning adds a rich, nutty flavor that takes the frosting to the next level.
Step 8: Finish the Frosting and Frost
Remove your browned butter from heat and whisk in the powdered sugar and milk until the frosting is smooth and creamy. Stir in the vanilla extract for that perfect aroma. Pour this decadent frosting over your warm brownies and spread evenly. Allow everything to cool completely before slicing so the frosting sets just right.
How to Serve Banana Bread Brownies Recipe

Garnishes
Sprinkle extra chopped walnuts or even mini chocolate chips over the frosting before it sets for a beautiful presentation and added texture. A light dusting of cinnamon can also complement the banana and walnut flavors wonderfully.
Side Dishes
Serve your Banana Bread Brownies with a scoop of vanilla ice cream or a dollop of whipped cream to create a classic dessert experience. Fresh berries on the side add a bright, tangy contrast that balances the sweetness.
Creative Ways to Present
Turn this Banana Bread Brownies Recipe into a layered dessert by cutting the brownies into squares, then layering them with pudding or cream and sliced bananas in parfait glasses for a fun and elegant treat anyone will adore.
Make Ahead and Storage
Storing Leftovers
Keep your leftover Banana Bread Brownies Recipe fresh by placing them in an airtight container at room temperature for up to three days. This helps maintain the moist texture without drying out the edges.
Freezing
You can freeze these brownies either with or without frosting. Wrap them tightly in plastic wrap and place them in a freezer-safe bag or container for up to three months. Thaw at room temperature before enjoying for a quick, delicious treat.
Reheating
Warm your Banana Bread Brownies slightly in the microwave or oven before serving to bring back their soft, gooey texture. A few seconds in the microwave will revive the flavors and make the frosting wonderfully melty again.
FAQs
Can I use overripe bananas for this Banana Bread Brownies Recipe?
Absolutely! Overripe bananas are perfect because they are sweeter and mash easily, which enhances the flavor and moisture of the brownies.
Is sour cream necessary in the recipe?
Yes, sour cream adds moisture and a subtle tang that balances the sweetness, making the brownies incredibly tender and flavorful.
Can I substitute the walnuts with another nut or ingredient?
Definitely. Pecans, almonds, or even chocolate chunks work wonderfully as alternatives, or you can leave them out entirely to keep the brownies nut-free.
How do I know when the Banana Bread Brownies Recipe is done baking?
Use a toothpick inserted in the center. If it comes out clean or with just a few moist crumbs, the brownies are done. Avoid waiting for a completely dry toothpick, or your brownies may be overcooked.
Can I make this recipe gluten-free?
Yes, by substituting the all-purpose flour with a gluten-free baking mix, you can enjoy gluten-free Banana Bread Brownies. Just make sure your baking mix contains xanthan gum for the best texture.
Final Thoughts
This Banana Bread Brownies Recipe is truly a delightful fusion of two beloved classics, guaranteed to thrill your taste buds with its moist, flavorful, and slightly decadent character. It’s perfect for sharing, gifting, or treating yourself to something special—so don’t hesitate to give it a try. Once you bake this recipe, it will likely become a favorite you return to again and again!
