These Banana Bread Brownies with brown butter frosting are simply irresistible! Perfect for any occasion, from casual family gatherings to celebrations, these brownies combine the comforting flavors of banana bread with the indulgence of rich frosting. Their unique texture and delightful taste will surely make them a favorite among friends and family.
Why You’ll Love This Recipe
- Easy to Make: This recipe is simple and quick, making it perfect for bakers of all skill levels.
- Deliciously Unique: The combination of banana bread and brownie creates a mouthwatering treat that stands out.
- Perfectly Moist: Ripe bananas keep these brownies incredibly moist and flavorful.
- Versatile Treat: Great for dessert, snacks, or even breakfast on the go!
- Crowd-Pleaser: These brownies are sure to impress everyone you serve them to!

Tools and Preparation
To make your baking experience seamless, gather the essential tools and equipment. Having everything ready will help you focus on creating these delicious treats.
Essential Tools and Equipment
- Mixing bowl
- Whisk
- Spatula
- 9×13-inch baking pan
- Parchment paper
Importance of Each Tool
- Mixing bowl: A large mixing bowl allows you to combine ingredients efficiently without spills.
- Spatula: A spatula helps you mix batter thoroughly and scrape every bit from the sides of the bowl.
- 9×13-inch baking pan: This size is ideal for evenly baking your brownies and achieving the perfect texture.
Ingredients
For the Banana Bread 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 Brown Butter 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 the 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.
Step 2: Prepare the Batter
In a large bowl, beat together the granulated sugar, sour cream, softened butter, and eggs until creamy. Mix in the mashed bananas and vanilla extract until well combined.
Step 3: Add Dry Ingredients
Sift in the all-purpose flour, baking soda, and salt. Carefully mix using a spatula until just combined. Gently fold in the chopped walnuts.
Step 4: Bake Your Brownies
Spread the batter evenly into your prepared pan. Bake for 30-35 minutes or until they turn golden brown. Allow cooling in the pan for about 10 minutes before frosting.
Step 5: Make the Frosting
While your brownies cool, prepare the brown butter frosting. In a large pan over medium heat, melt the butter until it boils and turns brown while stirring frequently. Once browned, remove from heat and transfer to a large bowl.
Step 6: Frost Your Brownies
Add half of the powdered sugar along with vanilla extract and milk to the bowl with brown butter. Whisk together until smooth. Gradually add more powdered sugar if needed to reach your desired consistency. Spread this delicious frosting over your warm banana bread brownies. Serve immediately and enjoy!
How to Serve Banana Bread Brownies
These banana bread brownies are a delightful treat that can be enjoyed in various ways. Whether you’re serving them at a gathering or enjoying them on your own, there are many creative options to elevate your experience.
With Ice Cream
- Place a warm brownie on a plate and top it with a scoop of vanilla or chocolate ice cream for an indulgent dessert.
Drizzled with Caramel Sauce
- A drizzle of caramel sauce adds sweetness and a rich flavor to the brownies, enhancing their taste.
Topped with Whipped Cream
- Serve your brownies with a dollop of whipped cream for a light and airy contrast to the dense brownies.
Paired with Fresh Fruit
- Enjoy these brownies alongside fresh fruits like strawberries or bananas for a refreshing complement.
With a Glass of Milk
- Nothing beats the classic combination of brownies and milk; it’s perfect for dipping!
How to Perfect Banana Bread Brownies
To make sure your banana bread brownies turn out perfectly every time, keep these tips in mind.
- Use Ripe Bananas: The riper the bananas, the sweeter and more flavorful your brownies will be.
- Don’t Overmix the Batter: Mix just until combined to keep the brownies soft and moist.
- Check for Doneness: Insert a toothpick into the center; it should come out clean or with few crumbs.
- Cool Before Frosting: Allow the brownies to cool slightly before adding frosting, so it spreads easily without melting.
- Experiment with Nuts: While walnuts are great, try using pecans or almonds for different textures and flavors.
Best Side Dishes for Banana Bread Brownies
Banana bread brownies pair well with several side dishes that enhance their taste. Here are some great options to consider:
- Fresh Fruit Salad: A mix of seasonal fruits adds freshness and balances the sweetness of the brownies.
- Coconut Whipped Cream: This dairy-free option brings in tropical flavors that complement the banana taste beautifully.
- Chocolate Dipping Sauce: Melted chocolate served on the side allows guests to dip their brownies for an extra treat.
- Yogurt Parfait: Layered yogurt with granola and honey provides a creamy contrast that pairs nicely with the dense brownies.
- Chia Seed Pudding: This nutty pudding is nutritious and offers a unique texture alongside the fudgy brownies.
- Coffee or Tea: A warm cup of coffee or tea enhances the flavors and makes for a comforting pairing.
Common Mistakes to Avoid
Making banana bread brownies can be simple, but there are common pitfalls to watch out for. Here are some mistakes to avoid:
- Overmixing the batter: Mixing too much can lead to dense brownies. Stir until just combined for a lighter texture.
- Using unripe bananas: Unripe bananas lack sweetness and flavor. Always use ripe bananas for the best taste.
- Not greasing the pan: Skipping this step can result in stuck brownies. Make sure to grease and line your pan properly.
- Skipping the cooling time: Frosting warm brownies can cause a melted mess. Let them cool for at least 10 minutes before frosting.
- Ignoring oven temperature: Every oven is different; using an inaccurate temperature can lead to undercooked or burnt brownies. Use an oven thermometer for accuracy.
Refrigerator Storage
- Store in an airtight container.
- Keep in the fridge for up to 5 days.
Freezing Banana Bread Brownies
- Wrap individual brownies tightly in plastic wrap or aluminum foil.
- Place them in a freezer-safe container.
- They can be frozen for up to 3 months.
Reheating Banana Bread Brownies
- Oven: Preheat your oven to 350°F (175°C) and warm for about 10 minutes.
- Microwave: Heat on medium power for about 20-30 seconds, checking frequently.
- Stovetop: Place in a skillet over low heat, covered, until warmed through.
Frequently Asked Questions
What are Banana Bread Brownies?
Banana bread brownies are a delicious twist on traditional banana bread, combining the rich, moist texture of brownies with the sweet flavors of ripe bananas.
How do I make Banana Bread Brownies gluten-free?
You can substitute all-purpose flour with a gluten-free flour blend. Ensure other ingredients are also gluten-free.
Can I add chocolate chips to Banana Bread Brownies?
Absolutely! Adding chocolate chips enhances the flavor and adds extra sweetness. Just fold them into the batter before baking.
How long do Banana Bread Brownies last?
When stored properly, banana bread brownies can last up to 5 days in the refrigerator and up to 3 months in the freezer.
Final Thoughts
These Banana Bread Brownies with brown butter frosting are not only addictive but also versatile! You can customize them by adding nuts or chocolate chips for added texture and flavor. Enjoy making these delightful treats that will surely impress friends and family!
Banana Bread Brownies
Indulge in the delightful fusion of flavors with these Banana Bread Brownies topped with a rich brown butter frosting. Perfect for any occasion, these brownies combine the comforting essence of banana bread with the decadent texture of brownies, ensuring that every bite is moist and flavorful. Made with ripe bananas for natural sweetness, this recipe is easy to follow, making it suitable for bakers at all levels. Whether served at a family gathering or enjoyed as a personal treat, these brownies are sure to impress everyone around.
- Total Time: 50 minutes
- Yield: Approximately 12 servings 1x
Ingredients
- 1 1/2 cups granulated sugar
- 1 cup sour cream
- 1/2 cup softened butter
- 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 (for frosting)
- 1 1/2 teaspoons vanilla extract (for frosting)
- 2-3 tablespoons milk (for frosting)
Instructions
- Preheat oven to 375°F (190°C). Grease and line a 9×13-inch baking pan.
- In a large bowl, beat together sugar, sour cream, butter, and eggs until creamy. Mix in mashed bananas and vanilla.
- Sift in flour, baking soda, and salt; mix gently until combined. Fold in walnuts.
- Spread batter evenly in the prepared pan and bake for 30-35 minutes or until golden brown.
- Cool slightly before frosting with brown butter frosting made by browning butter and mixing with powdered sugar and milk.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie (approx. 70g)
- Calories: 290
- Sugar: 20g
- Sodium: 180mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 42g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 40mg