why make this recipe
Banana Bread Brownies are a delicious way to enjoy two favorite treats in one dish. If you have overripe bananas sitting on your counter, this recipe is perfect for turning them into something sweet and satisfying. The combination of soft, moist brownies with a sweet frosting is hard to resist. Plus, they’re great for sharing at gatherings or enjoying as a cozy treat at home.
how to make Banana Bread Brownies
Ingredients :
For the Brownies:
- 1 cup (200 g) granulated sugar
- 1 cup (240 ml) sour cream (or plain Greek yogurt)
- ½ cup (113 g) unsalted butter, softened
- 2 large eggs
- 4 ripe bananas (mashed, about 2 cups)
- 2 teaspoons pure vanilla extract
- 2 cups (250 g) all-purpose flour
- 1 teaspoon baking soda
- ¾ teaspoon salt
- ½ cup (60 g) chopped walnuts (optional)
For the Frosting:
- ½ cup (113 g) unsalted butter
- 4 cups (480 g) powdered sugar
- 1½ teaspoons pure vanilla extract
- 3 tablespoons milk (more if needed for spreading)
Directions :
- Prepare the Pan:
- Preheat oven to 350°F (175°C). Grease and flour a 9×13-inch baking dish or line with parchment paper.
- Make the Banana Brownie Batter:
- In a large mixing bowl, cream together sugar, sour cream, and softened butter until light and fluffy. Beat in eggs, mashed bananas, and vanilla extract until smooth. In a separate bowl, whisk together flour, baking soda, and salt. Gradually add dry ingredients to the wet mixture, mixing just until combined. Fold in walnuts if using.
- Bake:
- Pour batter into the prepared pan and spread evenly. Bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean. Let cool in the pan on a wire rack.
- Prepare the Frosting:
- In a small saucepan, melt butter over medium heat and cook until it turns a light golden brown and smells nutty (about 4–5 minutes). Remove from heat and let cool slightly. Whisk in powdered sugar, vanilla, and milk until smooth and spreadable.
- Frost and Serve:
- Spread frosting over cooled brownies. Cut into squares or bars and serve.

how to serve Banana Bread Brownies
You can serve Banana Bread Brownies at room temperature, making them perfect for gatherings or as a coffee break snack. They can be enjoyed on their own or paired with a scoop of vanilla ice cream or fresh fruit for an extra treat.
how to store Banana Bread Brownies
Store any leftovers in an airtight container at room temperature for up to three days. If you want to keep them longer, you can refrigerate them for up to a week. You can also freeze the brownies for up to three months. Just wrap them tightly in plastic wrap and place them in a freezer bag.
tips to make Banana Bread Brownies
- Make sure your bananas are really ripe for the best flavor and sweetness.
- Don’t overmix the batter; mix just until combined for a softer brownie.
- If you like, add chocolate chips for an extra layer of flavor.
- You can adjust the amount of frosting based on your sweetness preference.
variation (if any)
If you’re looking for a different flavor, consider substituting the walnuts with chopped pecans or leaving them out altogether. You can also add spices like cinnamon or nutmeg to the brownie batter for a warm, comforting twist.
FAQs
1. Can I use frozen bananas?
Yes, you can use frozen bananas. Make sure to thaw them and drain any excess liquid before mashing.
2. Can I make these brownies without eggs?
You can replace the eggs with flax eggs or applesauce for a vegan option.
3. How can I make these brownies gluten-free?
You can substitute all-purpose flour with a gluten-free flour blend to make these brownies gluten-free. Just make sure it’s a 1:1 blend for best results.

Banana Bread Brownies
Ingredients
Method
- Preheat oven to 350°F (175°C). Grease and flour a 9×13-inch baking dish or line with parchment paper.
- In a large mixing bowl, cream together sugar, sour cream, and softened butter until light and fluffy.
- Beat in eggs, mashed bananas, and vanilla extract until smooth.
- In a separate bowl, whisk together flour, baking soda, and salt.
- Gradually add dry ingredients to the wet mixture, mixing just until combined.
- Fold in walnuts if using.
- Pour batter into the prepared pan and spread evenly.
- Bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean.
- Let cool in the pan on a wire rack.
- In a small saucepan, melt butter over medium heat and cook until it turns a light golden brown and smells nutty (about 4–5 minutes).
- Remove from heat and let cool slightly.
- Whisk in powdered sugar, vanilla, and milk until smooth and spreadable.
- Spread frosting over cooled brownies.
- Cut into squares or bars and serve.