This Banana Bread Brownies recipe comes together in about 30 minutes and is baked in a single pan for a quick and easy dessert that your family will love!
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)
Let’s Get Cooking!
Prepare the Pan
First things first, let’s get our oven warming up to 350°F (175°C). While that’s heating, grab a 9×13-inch baking dish and either grease and flour it or line it with parchment paper. Trust me, this will make your brownies much easier to remove later!
Make the Banana Brownie Batter
In a large mixing bowl, cream together the sugar, sour cream, and softened butter until it’s light and fluffy, this should take about 2-3 minutes. The smell of butter and sugar blending together? Absolutely irresistible! Then, go ahead and beat in the eggs, mashed bananas, and vanilla extract until the mixture is smooth and creamy.
Now, in another bowl, whisk together the flour, baking soda, and salt. Gradually add these dry ingredients to the wet mixture, mixing just until combined. You don’t want to overmix it; we want these brownies to be perfectly moist! If you’re feeling adventurous, fold in the walnuts at this point for a little extra crunch.
Bake
Pour the batter into your prepared pan and spread it out evenly. Bake for about 25-30 minutes, or until a toothpick inserted in the center comes out clean. The aroma wafting through your kitchen while these bake will have your family buzzing in anticipation! Let the brownies cool in the pan on a wire rack, patience pays off, I promise!
Prepare the Frosting
While those brownies are cooling, we can whip up a delicious frosting. In a small saucepan, melt the butter over medium heat. Cook it until it turns a light golden brown and smells nutty, about 4-5 minutes. It’s worth the wait! Once it’s ready, take it off the heat and let it cool slightly before whisking in the powdered sugar, vanilla extract, and milk until it’s smooth and spreadable. You might want to dive right in with a spoon at this point (no judgment here)!
Frost and Serve
Once the brownies are completely cool, spread the frosting generously over the top. You can cut them into squares or bars, whatever you prefer! Serve them up with a scoop of ice cream on the side if you’re feeling indulgent. It’s like a warm hug in dessert form!
If you loved these Banana Bread Brownies, be sure to check out my Air Fryer Banana Bread Muffins!
Why This Recipe Works
Quick & Easy
This recipe comes together all in one bowl (plus a pan), which means minimal cleanup and less fuss! It’s perfect for busy weeknights when you need to whip something up fast.
Comfort Food
These brownies are loaded with tons of flavor, making them the ultimate comfort food! They’re moist, rich, and absolutely satisfying.
Customizable
The beauty of these brownies is in their versatility. Feel free to swap in any ingredients you have lying around, love chocolate? Add chocolate chips! Not a nut fan? Leave them out. You can tailor the recipe to match your family’s tastes.
Make-Ahead Friendly
You can prepare the batter in advance and refrigerate it until you’re ready to bake. Plus, they taste just as good the next day, if they last that long!
Serving and Storage Tips
How to Serve This
These banana bread brownies are fantastic on their own, but if you want to kick it up a notch, serve them warm topped with vanilla ice cream, divine! They also pair beautifully with a cup of coffee or tea.
Storage
Store any leftovers in an airtight container at room temperature. They’ll stay fresh for 3-4 days, although I’m sure they won’t last that long in your house!
Reheating Instructions
If you want to enjoy them warm, just pop them in the microwave for about 10-15 seconds. They’ll be gooey and comforting all over again!
Freezer Friendly
Yes! You can freeze them too. Just wrap them tightly in plastic wrap and store them in a freezer-safe bag. When you’re ready to enjoy, simply thaw them at room temperature.
I can’t wait for you to try this banana bread brownie magic. Trust me, it’s something your family will be begging for time and time again! Enjoy the sweet moments in your kitchen!
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Banana Bread Brownies
Ingredients
Method
- Preheat your oven to 350°F (175°C). Prepare a 9×13-inch baking dish by greasing and flouring it or lining it with parchment paper.
- In a large mixing bowl, cream together the sugar, sour cream, and softened butter until light and fluffy (about 2-3 minutes).
- Beat in the eggs, mashed bananas, and vanilla extract until smooth and creamy.
- In another bowl, whisk together the flour, baking soda, and salt. Gradually add these dry ingredients to the wet mixture, mixing just until combined. If desired, fold in the walnuts.
- Pour the batter into the prepared pan and spread it out evenly. Bake for about 25-30 minutes, or until a toothpick inserted in the center comes out clean.
- Allow the brownies to cool in the pan on a wire rack.
- In a small saucepan, melt the butter over medium heat until it turns light golden brown and smells nutty (about 4-5 minutes). Remove from heat.
- Let it cool slightly before whisking in the powdered sugar, vanilla extract, and milk until smooth and spreadable.
- Once the brownies are completely cool, spread the frosting generously over the top. Cut into squares or bars.
- Serve with a scoop of ice cream for an indulgent treat.