These Banana Bread Brownies with brown butter frosting are truly a delightful treat! Perfect for any occasion, from casual gatherings to special celebrations, these brownies perfectly blend the flavors of banana bread and rich frosting. The unique combination of moist banana-infused brownies topped with a luscious brown butter frosting will have everyone asking for more. Get ready to impress your family and friends with this easy-to-follow recipe!
Why You’ll Love This Recipe
- Irresistible Flavor – The sweet, rich flavor of ripe bananas combined with a creamy brown butter frosting makes each bite unforgettable.
- Easy to Make – With straightforward steps and common ingredients, you can whip these up in no time!
- Versatile Dessert – Great for parties, potlucks, or just a cozy night in; they suit any occasion!
- Perfectly Moist Texture – The addition of sour cream ensures that these brownies stay moist and delicious.
- Nutty Crunch – Chopped walnuts add a satisfying crunch that beautifully complements the soft texture of the brownies.
Tools and Preparation
Before diving into the recipe, make sure you have the right tools on hand. These will help ensure your baking process goes smoothly.
Essential Tools and Equipment
- Mixing bowls
- Electric mixer or whisk
- Measuring cups and spoons
- Rubber spatula
- 9×13-inch baking pan
- Parchment paper
Importance of Each Tool
- Mixing bowls – A large bowl is essential for mixing ingredients thoroughly without spills.
- Electric mixer or whisk – Helps achieve a creamy consistency quickly, saving you time and effort.
- Rubber spatula – Perfect for scraping down the sides of bowls to ensure all ingredients are combined.
- 9×13-inch baking pan – Ensures even baking and provides enough space for the batter.

Ingredients
These banana bread brownies with brown butter frosting are so addictive! Learn the easy recipe, and prepare to be hooked.
For the Brownies
- 1 1/2 cups granulated sugar
- 1 cup sour cream
- 1/2 cup butter, softened
- 2 large eggs
- 3-4 ripe bananas, mashed
- 2 teaspoons vanilla extract
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 3/4 teaspoon salt
- 1/2 cup chopped walnuts
For the Frosting
- 1/4 cup butter
- 3-4 cups powdered sugar
- 1 1/2 teaspoons vanilla extract
- 2-3 tablespoons milk
How to Make Banana Bread Brownies
Step 1: Preheat the Oven
Preheat your oven to 375 degrees Fahrenheit. Grease and line a 9×13-inch pan with cooking spray and parchment paper, leaving an overhang on the sides. This makes it easy to lift out the brownies later.
Step 2: Prepare the Brownie Batter
In a large mixing bowl, beat together the granulated sugar, sour cream, softened butter, and eggs until creamy.
– Mix in the mashed bananas and vanilla extract until well incorporated.
Sift in the all-purpose flour, baking soda, and salt.
– Carefully mix using a rubber spatula until fully combined.
– Gently fold in the chopped walnuts for added texture.
Step 3: Bake the Brownies
Spread the brownie batter evenly into your prepared pan.
– Bake for about 30-35 minutes or until golden brown.
– Once done, allow them to cool in the pan for about 10 minutes before applying frosting.
Step 4: Make the Brown Butter Frosting
While your brownies cool, it’s time to make that delicious frosting!
– In a large pan over medium heat, melt the butter until it starts to boil and turns golden brown. Stir frequently to avoid burning.
– Remove from heat and transfer to a large bowl.
Add half of the powdered sugar along with vanilla extract and milk.
– Whisk until smooth. If needed, gradually add more powdered sugar until desired consistency is reached.
Step 5: Frost and Serve
Spread your brown butter frosting over warm banana bread brownies.
Serve immediately or allow them to cool completely before cutting into squares. Enjoy every decadent bite!
How to Serve Banana Bread Brownies
Banana bread brownies are versatile and can be served in various delightful ways. Whether you want to make them a stand-alone treat or pair them with other flavors, here are some serving suggestions.
A La Mode
- Serve warm banana bread brownies topped with a scoop of vanilla ice cream for a comforting dessert experience.
With Fresh Berries
- Add a handful of fresh strawberries, raspberries, or blueberries on the side to introduce a refreshing contrast to the rich brownies.
Drizzled with Caramel Sauce
- Enhance the sweetness by drizzling warm caramel sauce over each brownie piece before serving.
Paired with Coffee
- Enjoy banana bread brownies alongside your favorite brewed coffee for an indulgent afternoon pick-me-up.
With Whipped Cream
- Top the brownies with a dollop of whipped cream to add lightness and creaminess.
As Part of a Dessert Platter
- Cut the brownies into smaller pieces and serve them on a dessert platter with assorted treats like cookies and fruits.
How to Perfect Banana Bread Brownies
To achieve the perfect banana bread brownies, follow these tips that enhance flavor and texture.
-
Use Ripe Bananas: The riper the bananas, the sweeter and more flavorful your brownies will be. Look for bananas with plenty of brown spots.
-
Brown Your Butter: For deeper flavor, brown your butter until it has a nutty aroma before mixing it into your frosting.
-
Don’t Overmix: Gently mix the ingredients just until combined. Overmixing can lead to dense brownies.
-
Test for Doneness: Insert a toothpick into the center; if it comes out clean or with a few moist crumbs, they’re ready!
-
Cool Before Frosting: Let your brownies cool completely before adding frosting to prevent it from melting off.
Best Side Dishes for Banana Bread Brownies
Pairing side dishes with banana bread brownies can enhance your dessert experience. Here are some great options to consider:
- Vanilla Ice Cream: A classic choice that complements the rich flavors of the brownies perfectly.
- Fresh Fruit Salad: A mix of seasonal fruits adds brightness and freshness to balance the sweetness.
- Nutty Granola: The crunchiness of granola provides a delightful textural contrast when served alongside.
- Chocolate Sauce: A drizzle of chocolate sauce can elevate the dessert and satisfy chocolate cravings.
- Cream Cheese Frosting: Spread or serve this tangy frosting on the side for an extra layer of flavor.
- Coffee or Tea: A warm beverage enhances the overall experience, making it cozy and enjoyable.
- Yogurt Parfait: Layer yogurt with fruit and granola for a light and creamy accompaniment.
- Chia Seed Pudding: This can add health benefits while being a deliciously creamy side dish option.
Common Mistakes to Avoid
Making banana bread brownies can be a delightful experience, but there are some common pitfalls to be aware of.
- Boldly skip the ripeness check: Using unripe bananas will not yield the sweet flavor and moist texture desired. Always use ripe or overripe bananas for the best results.
- Boldly ignore ingredient temperature: Cold ingredients can lead to uneven mixing and texture. Ensure eggs and butter are at room temperature before using them in your batter.
- Boldly rush the cooling process: Frosting warm brownies may cause it to melt away. Allow your banana bread brownies to cool completely before applying the frosting for a perfect finish.
- Boldly misjudge baking time: Overbaking can result in dry brownies. Keep an eye on them towards the end of the baking time, and do a toothpick test to check for doneness.
- Boldly overlook mixing technique: Overmixing the batter can lead to tough brownies. Mix until just combined for a soft and chewy texture.
- Boldly skimp on nuts: If you love nuts, don’t be shy! Chopped walnuts add a delicious crunch and flavor, so use the recommended amount or more if desired.

Storage & Reheating Instructions
Refrigerator Storage
- Store banana bread brownies in an airtight container for up to 5 days.
- For best quality, place parchment paper between layers if stacking.
Freezing Banana Bread Brownies
- Wrap individual brownies in plastic wrap and then place them in a freezer-safe bag.
- They can be frozen for up to 3 months without losing flavor.
Reheating Banana Bread Brownies
- Oven: Preheat to 350°F (175°C) and warm for about 10 minutes until heated through.
- Microwave: Heat for 15-20 seconds on medium power for a quick warm-up.
- Stovetop: Place in a skillet over low heat, cover, and warm gently for 5 minutes.
Frequently Asked Questions
If you have questions about making banana bread brownies, you’re not alone! Here are some common inquiries:
What makes Banana Bread Brownies different from regular brownies?
Banana bread brownies combine the rich flavor of traditional brownies with the fruity sweetness of banana bread. This gives you a moist, flavorful treat that stands out.
Can I use other nuts instead of walnuts?
Yes! Feel free to substitute walnuts with pecans or even chocolate chips if you prefer. Customize according to your taste!
How do I know when my Banana Bread Brownies are done?
Insert a toothpick into the center; it should come out clean or with a few moist crumbs attached, indicating they are perfectly baked.
Can I make these banana bread brownies gluten-free?
Absolutely! Replace all-purpose flour with a gluten-free blend suitable for baking. Ensure other ingredients are also gluten-free.
Can I add chocolate chips to my Banana Bread Brownies?
Certainly! Adding chocolate chips enhances the flavor profile. Mix in about 1 cup before baking for extra gooeyness.
Final Thoughts
These banana bread brownies with brown butter frosting offer an irresistible combination of flavors and textures that everyone will love. They’re perfect for any occasion or simply as an everyday treat. Feel free to customize with your favorite nuts or add-ins to make them uniquely yours!
Banana Bread Brownies
Indulge in the delightful fusion of flavors with these Banana Bread Brownies topped with a creamy brown butter frosting. This easy-to-follow recipe merges the moist richness of banana bread with the decadence of brownies, creating a treat that’s perfect for any occasion. Whether you’re hosting a gathering or simply satisfying your sweet tooth, these brownies will impress your family and friends alike. The unique combination of ripe bananas and luscious frosting guarantees a delicious experience that you won’t forget!
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: Approximately 20 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1 1/2 cups granulated sugar
- 1 cup sour cream
- 1/2 cup butter, softened
- 2 large eggs
- 3–4 ripe bananas, mashed
- 2 teaspoons vanilla extract
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 3/4 teaspoon salt
- 1/2 cup chopped walnuts
- 1/4 cup butter (for frosting)
- 3–4 cups powdered sugar
- 1 1/2 teaspoons vanilla extract (for frosting)
- 2–3 tablespoons milk
Instructions
- Preheat your oven to 375°F (190°C). Grease and line a 9×13-inch baking pan with parchment paper.
- In a large bowl, mix granulated sugar, sour cream, softened butter, and eggs until smooth. Stir in mashed bananas and vanilla extract.
- Gradually sift in flour, baking soda, and salt; gently fold until combined. Add chopped walnuts.
- Spread the batter evenly in the prepared pan and bake for 30-35 minutes or until golden brown. Cool for about 10 minutes.
- For frosting, melt butter in a pan over medium heat until golden brown. Mix with powdered sugar, vanilla extract, and milk until smooth.
- Spread the frosting over warm brownies and serve.
Nutrition
- Serving Size: 1 brownie (45g)
- Calories: 250
- Sugar: 22g
- Sodium: 170mg
- Fat: 10g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 30mg



Leave a Comment