Oh, my goodness! If you’re anything like me, you’re always on the lookout for that perfect dessert that can satisfy your sweet tooth without taking up your entire afternoon. Well, let me tell you, these Banana Bread Brownies with Brown Butter Frosting are just the ticket! They’re rich, decadent, and oh-so-easy to whip up. Plus, they’re a fantastic way to use those overripe bananas sitting on your counter. And if you’re in the mood for something savory later, don’t forget to check out some of my favorite easy pasta recipes for quick family dinners!
Why You’ll Love This Recipe
- Decadent flavor with a delightful twist on traditional banana bread.
- Quick and easy to make, perfect for busy weeknights.
- Brown butter frosting adds a rich, nutty flavor that elevates the brownies.
- Great for sharing at gatherings or enjoying as a cozy treat at home.
- Can be made ahead and stored for later indulgence!
Ingredients
Let’s gather our ingredients! You’ll need:
- 1/2 cup unsalted butter, softened
- 1 cup granulated sugar
- 1/2 cup sour cream
- 2 large eggs
- 2 ripe bananas, mashed (about 1 cup)
- 1 teaspoon vanilla extract
- 1 cup all-purpose flour
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup unsalted butter (for frosting)
- 2 cups powdered sugar
- 2 tablespoons milk
- 1/2 teaspoon vanilla extract (for frosting)
Full ingredient list with measurements is provided in the printable recipe card below.
How to Make the Recipe
Now, let’s get to the fun part—making these delicious brownies!
- Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan.
- In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy. Add in the sour cream, eggs, mashed bananas, and vanilla extract, mixing until well combined.
- In a separate bowl, whisk together the flour, baking soda, and salt. Gradually mix the dry ingredients into the wet ingredients until just combined. Be careful not to overmix!
- Pour the batter into the prepared baking pan and bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean. Let it cool slightly.
- While the brownies are cooling, melt the remaining 1/2 cup of butter in a saucepan over medium heat until it turns golden brown and has a nutty aroma. Remove from heat and whisk in the powdered sugar, milk, and vanilla extract until smooth.
- Spread the warm frosting over the brownies. Allow to set before slicing and serving.
Pro Tips for Making the Recipe
Here are some of my favorite tips to ensure your brownies turn out perfectly:
- Make sure your bananas are really ripe for the best flavor and sweetness.
- Don’t skip the brown butter! It adds a depth of flavor that’s simply irresistible.
- Let the brownies cool completely before frosting to prevent the frosting from melting.
- For an extra touch, sprinkle some chopped nuts or chocolate chips on top of the frosting.
- If you’re short on time, you can use store-bought frosting, but I highly recommend making your own for that homemade touch!
How to Serve
These brownies are perfect for any occasion! Here are some serving suggestions:
- Serve warm with a scoop of vanilla ice cream for a delightful dessert.
- Pair with a cup of coffee or tea for a cozy afternoon treat.
- Cut them into smaller squares for a sweet addition to your next gathering or potluck.
- Drizzle with caramel sauce for an extra indulgent experience.
Make Ahead and Storage
Want to enjoy these brownies later? Here’s how to store them:
- Store the brownies in an airtight container at room temperature for up to 3 days.
- For longer storage, you can freeze them! Just wrap them tightly in plastic wrap and then in aluminum foil. They’ll keep in the freezer for up to 3 months.
- Thaw at room temperature before serving, or pop them in the microwave for a few seconds to warm them up.
So there you have it! A deliciously easy recipe for Banana Bread Brownies with Brown Butter Frosting that’s sure to become a family favorite. Whether you’re looking for a sweet treat after a busy day or a delightful dessert to impress your friends, these brownies are the answer. Happy baking!

Banana Bread Brownies with Brown Butter Frosting Recipe
Ingredients
Method
- Preheat oven to 350°F (175°C) and grease a 9x13-inch pan.
- Cream butter and sugar, add sour cream, eggs, bananas, and vanilla. Mix dry ingredients separately and combine.
- Pour batter into pan and bake for 25–30 minutes. Cool slightly.
- Melt butter until golden, mix in powdered sugar, milk, and vanilla to make frosting.
- Spread frosting over warm brownies and let set before slicing.