Banana Bread Brownies
Who needs cupcakes when you can have Banana Bread Brownies?
Imagine the warm, irresistible aroma of ripe bananas blending with sweet sugar and creamy butter wafting through your kitchen. Now, combine that with the rich, fudgy goodness of traditional brownies. Banana Bread Brownies are not just any dessert; they’re the delightful love child of two classics! This one-pan wonder will have your taste buds dancing and your family asking for seconds.

Why make this recipe
These Banana Bread Brownies will soon become your go-to dessert for so many reasons:
- Easy cleanup: You only need one bowl and a baking pan. Less mess, more fun, right?
- Affordable ingredients: With simple staples, you won’t have to raid your pantry for special items.
- Family-friendly: They’re perfect for kids and adults alike. Who wouldn’t want a cheeky brownie packed with bananas?
Ingredients
You don’t need fancy stuff — just these basics!
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
Let’s get this delicious treat in the oven!

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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.
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How to make Banana Bread Brownies (Overview)
Just think: you’re mixing up a batter that’s as easy as pie (or should I say, brownie?). Start by creaming sugar, sour cream, and butter. Next, toss in those mashed bananas and eggs, followed by sifting in the dry ingredients—just like making traditional brownies! Don’t forget to fold in those optional walnuts for crunch. Bake, let it cool, and then slather on that rich frosting. Pro tip: Let the frosting cool slightly for an ultra-smooth spread!
How to serve Banana Bread Brownies
These brownies are scrumptious on their own, but why not add a little flair?
- Serve warm with a scoop of vanilla ice cream on top for that dreamy melt effect.
- Dust with powdered sugar or a drizzle of chocolate sauce for an extra indulgence.
- Pair them with a cup of coffee or tea — the comforting aroma will fill your home.
How to store Banana Bread Brownies
You can enjoy these brownies for up to 5 days in the fridge! Just make sure to cover them properly to keep them moist. Want to make them ahead? You can freeze them for up to 3 months. Just remember to let them thaw before diving in. Pro tip: Pop them in the microwave for 10-15 seconds to reheat and enjoy that fresh-out-of-the-oven taste!
Tips to make Banana Bread Brownies
- Don’t skip the ripe bananas: The riper, the better! They add sweetness and moisture.
- Use Greek yogurt for a healthier twist — it’ll keep the brownies moist without losing flavor!
- Toast the walnuts for a richer flavor if you’re including them.
- Don’t overmix the batter after adding dry ingredients; it ensures a nice, fudgy texture.
Variation
Want to switch it up? Here are a few tasty variations:
- Vegan option: Substitute eggs with flaxseed meal and use a plant-based yogurt.
- Chocolate twist: Add cocoa powder for a double chocolate banana brownie!
- Spicy kick: Toss in a pinch of cinnamon or even some chili powder for an unexpected flavor!
FAQs
Can I use frozen bananas?
Absolutely! Just thaw them and mash them as you would fresh ones.
Can I make these brownies ahead of time?
Yes! Just store them in an airtight container for up to 5 days in the fridge or freeze them for longer.
What can I substitute for sour cream?
Plain Greek yogurt works perfectly as a substitute for a lighter option!
📌 Pin this recipe for your next cozy dinner night!

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.