These Banana Bread Brownies with brown butter frosting are a delightful twist on classic banana bread. Perfect for any occasion, they offer a rich, moist texture complemented by a creamy, flavorful frosting. Whether it’s a cozy family gathering or a casual get-together with friends, these brownies will have everyone coming back for more.
Why You’ll Love This Recipe
- Irresistible Flavor: The combination of ripe bananas and brown butter creates a rich taste that’s hard to resist.
- Easy to Make: With just a few simple steps, you can whip these brownies up in no time.
- Versatile Treat: Perfect for dessert, snacks, or even breakfast – these brownies fit any occasion.
- Crowd-Pleasing: This recipe yields 15 servings, making it great for sharing at parties or potlucks.
- Unique Texture: Enjoy the fudgy brownie base paired with the smooth, buttery frosting.
Tools and Preparation
Before diving into the recipe, gather your tools to ensure a smooth baking experience.
Essential Tools and Equipment
- Mixing bowls
- Whisk
- Baking pan (9×13-inch)
- Spatula
- Sifter
Importance of Each Tool
- Mixing bowls: Essential for combining ingredients without spills.
- Whisk: Helps achieve a smooth batter by thoroughly blending ingredients.
- Baking pan: The right size ensures even baking and perfect results.
- Spatula: Ideal for folding ingredients gently and spreading batter evenly.

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 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: Mix the Brownie Batter
In a large bowl, beat together the granulated sugar, sour cream, softened butter, and eggs until creamy. Then add in the mashed bananas and vanilla extract.
Step 3: Combine Dry Ingredients
Sift in the all-purpose flour, baking soda, and salt. Mix carefully using a spatula until well combined. Finally, fold in the chopped walnuts to add some crunch.
Step 4: Bake the Brownies
Spread the batter evenly into your prepared pan. Bake for 30-35 minutes or until golden brown. Once done, allow them to cool in the pan for about 10 minutes before frosting.
Step 5: Prepare the Frosting
While your brownies cool, make the frosting. In a large pan over medium heat, melt the butter until it boils and turns brown. Stir frequently to prevent burning. Once browned, remove from heat and transfer it to a mixing bowl.
Step 6: Frost Your Brownies
To the bowl with melted butter, add half of the powdered sugar along with vanilla extract and milk. Whisk until smooth; adjust thickness by adding more powdered sugar if necessary. Spread this delightful frosting over your warm banana bread brownies. Serve them up and enjoy!
How to Serve Banana Bread Brownies
Banana bread brownies are a delightful dessert that can be enjoyed in various ways. Whether you’re hosting a gathering or simply indulging at home, these serving suggestions will elevate your experience.
With Ice Cream
- Serve warm banana bread brownies with a scoop of vanilla ice cream on top for a delicious contrast of flavors and temperatures.
Drizzled with Caramel Sauce
- Add a drizzle of rich caramel sauce over the brownies for an extra layer of sweetness and a gourmet touch.
Topped with Whipped Cream
- Light and fluffy whipped cream can enhance the texture, making each bite even more delightful and airy.
With Fresh Fruit
- Pair your brownies with fresh strawberries or bananas to add a refreshing element that complements the dessert beautifully.
Dusted with Powdered Sugar
- A light dusting of powdered sugar can add visual appeal and a touch of sweetness without overwhelming the taste.
How to Perfect Banana Bread Brownies
Perfecting banana bread brownies is all about mastering the technique and ingredients. Here are some essential tips to help you create the best batch possible.
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Use Ripe Bananas: The riper the bananas, the sweeter and more flavorful your brownies will be. Look for bananas with plenty of brown spots.
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Don’t Overmix: When combining wet and dry ingredients, mix just until combined. Overmixing can lead to tougher brownies, so be gentle!
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Check for Doneness: Use a toothpick to check if your brownies are done; it should come out with a few moist crumbs, not wet batter.
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Cool Before Frosting: Allow the brownies to cool completely before adding frosting. This prevents the frosting from melting and helps it set nicely.
Best Side Dishes for Banana Bread Brownies
Banana bread brownies pair wonderfully with various side dishes that complement their rich flavor. Here are some tasty options to consider:
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Fresh Berries: A mix of strawberries, blueberries, or raspberries adds freshness and acidity that balance the sweetness of the brownies.
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Greek Yogurt: Serve a dollop of Greek yogurt on the side for a creamy contrast that also adds protein to your dessert plate.
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Coffee: A hot cup of coffee enhances the chocolatey flavor, providing a comforting beverage that pairs well with sweets.
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Nut Mix: A small bowl of mixed nuts offers crunchiness and healthy fats, which contrasts nicely with the soft texture of the brownies.
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Fruit Salad: A colorful fruit salad can lighten up your dessert experience while providing additional nutrients and flavor variety.
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Chai Tea: The warm spices in chai tea pair beautifully with banana bread brownies, enhancing their flavors while offering a cozy drink option.
Common Mistakes to Avoid
Making banana bread brownies can be simple, but there are common pitfalls to watch for. Here are some mistakes to avoid:
- Using unripe bananas: Ripe bananas add sweetness and moisture. Always choose bananas that are well-spotted and soft for the best flavor.
- Overmixing the batter: Overmixing can lead to dense brownies. Mix just until ingredients are combined to keep them light and fluffy.
- Not measuring ingredients correctly: Accurate measurements are key. Use a kitchen scale or proper measuring cups for precision in baking.
- Skipping the cooling time: Frosting warm brownies can cause it to melt away. Let your brownies cool for at least 10 minutes before frosting.
- Choosing the wrong pan size: Using a smaller or larger pan can affect baking time and texture. Stick to the recommended 9×13-inch pan for even cooking.
Storage & Reheating Instructions
Refrigerator Storage
- Store banana bread brownies in an airtight container to maintain freshness.
- They can last up to 5 days in the refrigerator.
Freezing Banana Bread Brownies
- Wrap individual brownies in plastic wrap and place them in a freezer-safe bag.
- They can be frozen for up to 3 months without losing quality.
Reheating Banana Bread Brownies
- Oven: Preheat your oven to 350°F (175°C) and heat brownies for about 10-15 minutes until warmed through.
- Microwave: Heat one brownie on a microwave-safe plate for about 15-20 seconds, checking frequently.
- Stovetop: Place brownies in a skillet over low heat, covering with a lid until warmed through, usually about 5 minutes.
Frequently Asked Questions
Here are some answers to common questions about banana bread brownies:
How do I make Banana Bread Brownies from scratch?
You simply mix ripe bananas with sugar, sour cream, butter, eggs, flour, and baking soda. Bake them at 375°F until golden brown.
Can I use frozen bananas for Banana Bread Brownies?
Yes! Just thaw them completely before mashing. Frozen bananas work well as they tend to be sweeter.
Are Banana Bread Brownies gluten-free?
To make them gluten-free, substitute all-purpose flour with a gluten-free blend designed for baking.
What variations can I try with Banana Bread Brownies?
You can add chocolate chips, peanut butter swirls, or different nuts based on your preference for a unique twist!
Final Thoughts
These banana bread brownies with brown butter frosting are not only easy to make but also incredibly delicious! Their moist texture and sweet flavor make them perfect as a dessert or snack. You can customize this recipe by incorporating different nuts or adding chocolate chips. Give it a try—you’ll love how versatile these brownies can be!
Banana Bread Brownies
Indulge in the delightful taste of Banana Bread Brownies topped with rich brown butter frosting. This recipe takes the classic banana bread to new heights, combining the sweetness of ripe bananas with a fudgy brownie base. The result is a moist and decadent treat that is perfect for any occasion—be it a family gathering or a cozy night in. With just a few simple steps, you can create these scrumptious brownies that are sure to impress everyone at the table. Serve them warm or chilled, and enjoy the creamy frosting on top for an added layer of flavor.
- Total Time: 50 minutes
- Yield: 15 servings 1x
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 for frosting
Instructions
- Preheat your oven to 375°F (190°C) and prepare a 9×13-inch baking pan by greasing and lining it with parchment paper.
- In a large mixing bowl, combine granulated sugar, sour cream, softened butter, and eggs until smooth. Stir in mashed bananas and vanilla extract.
- Sift in all-purpose flour, baking soda, and salt; mix gently until just combined. Fold in chopped walnuts.
- Pour the batter into the prepared pan and bake for 30-35 minutes or until golden brown. Let cool before frosting.
- For frosting: Melt butter in a pan over medium heat until browned. Transfer to a bowl; whisk in powdered sugar and milk until smooth. Spread over cooled brownies.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie (50g)
- Calories: 210
- Sugar: 18g
- Sodium: 200mg
- Fat: 8g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 25mg





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