These Banana Bread Brownies with brown butter frosting are a delightful treat that combines the classic flavors of banana bread and the rich indulgence of brownies. Perfect for any occasion, this recipe promises to impress your family and friends with its moist texture and sweet, buttery frosting. You’ll find it hard to resist these delicious bites!

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- How to Make Banana Bread Brownies
- Step 1: Preheat the Oven
- Step 2: Prepare the Batter
- Step 3: Combine Dry Ingredients
- Step 4: Bake the Brownies
- Step 5: Make the Frosting
- Step 6: Frost Your Brownies
- How to Serve Banana Bread Brownies
- Warm with Ice Cream
- Drizzled with Caramel Sauce
- Paired with Fresh Berries
- Topped with Whipped Cream
- With a Dusting of Powdered Sugar
- How to Perfect Banana Bread Brownies
- Best Side Dishes for Banana Bread Brownies
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Banana Bread Brownies
- Reheating Banana Bread Brownies
- Frequently Asked Questions
- Can I use frozen bananas for Banana Bread Brownies?
- How can I make my Banana Bread Brownies healthier?
- What can I add to my Banana Bread Brownies?
- How should I store leftover Banana Bread Brownies?
- Can I make these banana brownies gluten-free?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Easy to Make: With simple ingredients and straightforward steps, you’ll whip these up in no time.
- Delicious Flavor: The combination of ripe bananas and brown butter creates a unique flavor profile that is both comforting and indulgent.
- Perfect for Sharing: Cut them into squares for parties or gatherings; they’re easy to serve and always a hit.
- Versatile Treat: Great as an afternoon snack, dessert after dinner, or even breakfast on-the-go!
- Customizable: Feel free to add your favorite nuts or chocolate chips for an extra twist.
Tools and Preparation
To make the best Banana Bread Brownies, gather your kitchen tools. Having the right equipment will streamline the process and improve your results.
Essential Tools and Equipment
- Mixing bowl
- Measuring cups
- Whisk
- Spatula
- 9×13-inch baking pan
- Parchment paper
Importance of Each Tool
- Mixing bowl: A large bowl is essential for combining all the ingredients smoothly without spilling.
- Measuring cups: Accurate measurements ensure consistency in texture and flavor throughout your brownies.
- Whisk: A whisk helps to incorporate air into the batter, making it lighter and fluffier.
- Spatula: Useful for mixing, folding in ingredients, and spreading batter evenly in the pan.

Ingredients
These banana bread brownies with brown butter frosting are so addictive! Learn the easy recipe, and prepare to be hooked.
- 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
- 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 a 9×13-inch baking pan with cooking spray and line it with parchment paper, leaving an overhang on the sides for easy removal later.
Step 2: Prepare the Batter
In a large mixing bowl:
1. Beat together the granulated sugar, sour cream, softened butter, and eggs until creamy.
2. Stir in the mashed bananas and vanilla extract until well combined.
Step 3: Combine Dry Ingredients
Sift together:
1. All-purpose flour, baking soda, and salt into the wet mixture.
2. Carefully mix with a spatula until just combined; do not overmix.
3. Fold in chopped walnuts gently.
Step 4: Bake the Brownies
Spread the batter evenly into your prepared baking pan:
1. Bake for about 30-35 minutes or until golden brown on top.
2. Allow cooling in the pan for about 10 minutes before frosting.
Step 5: Make the Frosting
While cooling:
1. In a medium saucepan over medium heat, melt butter until it boils and browns slightly; stir frequently.
2. Remove from heat and transfer to a mixing bowl.
Step 6: Frost Your Brownies
To make frosting:
1. Add half of the powdered sugar along with vanilla extract and milk to browned butter.
2. Whisk until smooth; add more powdered sugar if needed for desired consistency.
3. Spread frosting generously over warm brownies before slicing into squares.
Enjoy your delicious Banana Bread Brownies!
How to Serve Banana Bread Brownies
Banana Bread Brownies are a delightful treat that can be enjoyed in various ways. Whether you’re hosting a gathering or indulging at home, here are some creative serving suggestions to enhance your experience.
Warm with Ice Cream
- Serve the brownies warm and top them with a scoop of vanilla ice cream for a delicious contrast between hot and cold.
Drizzled with Caramel Sauce
- Add a drizzle of caramel sauce over the brownies to elevate their sweetness and add an extra layer of flavor.
Paired with Fresh Berries
- Serve banana bread brownies alongside fresh strawberries, blueberries, or raspberries for a refreshing touch.
Topped with Whipped Cream
- Lightly dollop whipped cream on top for a creamy texture that complements the rich chocolatey flavor.
With a Dusting of Powdered Sugar
- A light dusting of powdered sugar adds visual appeal and enhances the sweetness without overpowering the flavors.
How to Perfect Banana Bread Brownies
Perfecting your Banana Bread Brownies takes just a few simple tips. Follow these suggestions for an irresistible result every time.
- Use Ripe Bananas: The riper the bananas, the sweeter and more flavorful your brownies will be.
- Don’t Overmix: Stir the batter until just combined to keep your brownies moist and tender.
- Check for Doneness Early: Start checking your brownies at 25 minutes to avoid overbaking.
- Let Them Cool Completely: Allow the brownies to cool before frosting to prevent melting and ensure smooth application.
- Experiment with Mix-Ins: Consider adding chocolate chips or dried fruit for added texture and flavor.
Best Side Dishes for Banana Bread Brownies
Pairing side dishes with your Banana Bread Brownies can create a more balanced dessert experience. Here are some excellent options to consider:
Fresh Fruit Salad
A vibrant mix of seasonal fruits adds freshness and balances the sweetness of the brownies.Greek Yogurt Parfait
Layer Greek yogurt with honey and granola for a creamy contrast that complements the brownie texture.Chia Seed Pudding
Nutritious chia seed pudding can serve as a light side, providing fiber and omega-3s without overwhelming sweetness.Nutty Granola Bars
Crunchy granola bars offer a satisfying crunch that pairs well with soft banana bread brownies.Herbal Tea
A cup of warm herbal tea can soothe your palate, making it an ideal beverage choice alongside these rich treats.Coconut Milk Shake
A refreshing coconut milk shake brings tropical vibes that beautifully complement the flavors in the brownies.
Common Mistakes to Avoid
Avoiding common mistakes can make your Banana Bread Brownies even better. Here are some errors to watch out for:
- Using unripe bananas: Ripe bananas provide sweetness and moisture. Make sure your bananas have brown spots for the best flavor.
- Overmixing the batter: Overmixing can lead to tough brownies. Mix just until combined for a soft texture.
- Skipping the parchment paper: Parchment paper helps with easy removal. Always line your pan to prevent sticking.
- Not checking for doneness: Ovens vary, so check your brownies a few minutes before the suggested time. A toothpick should come out with a few moist crumbs.
- Frosting too soon: Allow brownies to cool slightly before frosting. This prevents the frosting from melting into the brownies.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 5 days.
- Place parchment paper between layers to prevent sticking.
Freezing Banana Bread Brownies
- Wrap tightly in plastic wrap, then foil for up to 3 months.
- Label with the date to keep track of freshness.
Reheating Banana Bread Brownies
- Oven: Preheat to 350°F and warm for 10-15 minutes for best results.
- Microwave: Heat individual pieces on low power for about 20-30 seconds.
- Stovetop: Use a skillet over low heat, covering it to retain moisture while warming.
Frequently Asked Questions
Here are some common questions about making Banana Bread Brownies:
Can I use frozen bananas for Banana Bread Brownies?
Yes, thawed frozen bananas work well! Just make sure to drain excess moisture before mashing.
How can I make my Banana Bread Brownies healthier?
You can substitute half of the butter with applesauce or use whole wheat flour instead of all-purpose flour.
What can I add to my Banana Bread Brownies?
Feel free to customize with chocolate chips, dried fruit, or different nuts for added flavor and texture.
How should I store leftover Banana Bread Brownies?
Store them in an airtight container in the refrigerator or freeze them if you want longer storage.
Can I make these banana brownies gluten-free?
Yes! Use a gluten-free all-purpose flour blend as a substitute in this recipe.
Final Thoughts
These Banana Bread Brownies are not only delicious but also versatile. Their rich flavor pairs wonderfully with various toppings like nuts or chocolate chips. We encourage you to try this recipe and explore customization options that suit your taste!
Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.
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Banana Bread Brownies
- Total Time: 50 minutes
- Yield: Serves approximately 16 brownies 1x
Description
Indulge in the delightful fusion of flavors with these Banana Bread Brownies topped with luscious brown butter frosting. This easy-to-follow recipe brings together the classic essence of banana bread and the richness of brownies, creating a moist and satisfying treat that’s perfect for any occasion. Whether you’re hosting a gathering or simply craving something sweet, these brownies will impress everyone with their delicious taste and inviting aroma. Enjoy them warm, share them with friends, or savor them as a quick breakfast on-the-go. With the option to customize with your favorite add-ins, this recipe is sure to become a staple in your dessert repertoire.
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 (optional)
- Additional butter and powdered sugar for frosting
Instructions
- Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking pan and line it with parchment paper.
- In a large mixing bowl, combine granulated sugar, sour cream, softened butter, and eggs; beat until creamy.
- Stir in mashed bananas and vanilla extract until fully incorporated.
- Sift together flour, baking soda, and salt; fold into the wet mixture until just combined. Gently mix in chopped walnuts if desired.
- Spread batter evenly into the prepared pan and bake for 30-35 minutes until golden brown.
- While cooling, prepare frosting by browning additional butter in a saucepan over medium heat. Transfer to a bowl and whisk in powdered sugar and milk until smooth.
- Frost warm brownies before slicing into squares.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie (63g)
- Calories: 210
- Sugar: 19g
- Sodium: 150mg
- Fat: 8g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 31g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 35mg





