Caught in the whirlwind of everyday life, I often find solace in the kitchen, especially when the smell of ripe bananas and rich brown butter fills the air. That’s how these Banana Bread Brownies came to life, marrying the beloved flavors of banana bread with the indulgence of brownies. Not only are they a delightful treat for dessert or a sweet mid-afternoon pick-me-up, but they’re also incredibly easy to whip up, making them perfect for those busy days. Plus, the luscious brown butter frosting takes them to a whole new level of deliciousness, ensuring every bite is a moment worth savoring. Ready to dive into the world of comforting, homemade goodness? Let’s get started!
Why are Banana Bread Brownies a must-try?
Heavenly Flavor Fusion: These Banana Bread Brownies perfectly blend the rich, familiar taste of banana bread with the decadent texture of brownies, creating an indulgent treat that will leave everyone craving more.
Quick and Simple: With straightforward steps, you can bake up these delightful bars in no time, making them great for busy evenings or spontaneous gatherings. Pair them with a scoop of ice cream for an extra special dessert!
Crowd-Pleaser: Guaranteed to please both kids and adults, these brownies are perfect for parties or cozy family nights. Plus, they make excellent snacks that keep you away from fast food!
Versatile Ingredients: Feel free to swap in your favorite nuts or add chocolate chips for extra sweetness—this recipe is all about personalizing it to your taste!
Irresistible Frosting: The homemade brown butter frosting adds a mouthwatering finish, turning these brownies into something truly special. When you’re done, you can even store extras for a sweet treat later; just check out my tips on how to store them effectively!
Banana Bread Brownies Ingredients
For the Brownie Base
• Sugar – Sweetness; can substitute with brown sugar for a deeper flavor.
• Sour Cream – Adds moisture and tenderness; Greek yogurt works as a great substitute.
• Butter – Provides richness and flavor; use unsalted to control salt levels in the recipe.
• Eggs – Acts as a binding agent for moisture; flaxseed meal can replace eggs for a vegan option.
• Mashed Bananas – Infuses flavor and moisture; overripe bananas yield maximum sweetness.
• Vanilla Extract – Enhances the overall flavor; opt for pure vanilla for better quality.
• All-Purpose Flour – Gives structure; whole wheat flour can be a healthier substitution.
• Baking Soda – Serves as a leavening agent for rise; ensure it’s fresh for optimal results.
• Salt – Balances sweetness; sea salt also adds a different flavor profile.
• Chopped Walnuts (optional) – Provides texture and crunch; can be omitted for a nut-free treat.
For the Brown Butter Frosting
• Powdered Sugar – Adds sweetness and serves as a thickening agent; add more for a thicker consistency.
• Extra Milk – Adjusts consistency of the frosting; choose dairy-free milk for a vegan option.
These Banana Bread Brownies are a delightful treat that can brighten any day!
Step‑by‑Step Instructions for Banana Bread Brownies
Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). While that warms up, grab a 15×10-inch jelly roll pan and generously grease and flour it to ensure your Banana Bread Brownies don’t stick. This step is crucial for achieving perfectly tender bars that release easily after baking.
Step 2: Combine Wet Ingredients
In a large mixing bowl, combine the sugar, sour cream, softened butter, and eggs. Use a hand mixer or whisk vigorously until the mixture is smooth and creamy, about 2-3 minutes. This forms the base of your brownie batter, creating a delightful blend of sweetness and richness that will make your Banana Bread Brownies irresistible.
Step 3: Incorporate Bananas and Vanilla
Next, mix in the mashed bananas and vanilla extract to the wet ingredients. Blend until fully combined, ensuring the bananas are well incorporated. You want a harmonious mixture that brings the flavors together, setting the stage for the moistness that these Banana Bread Brownies are known for.
Step 4: Add Dry Ingredients
Sprinkle the all-purpose flour, baking soda, and salt over the wet mixture. Gently fold these ingredients in until just combined; be careful not to over-mix. The batter should remain slightly lumpy, ensuring your Banana Bread Brownies stay soft and tender once baked.
Step 5: Optional Walnut Addition
If you’re using walnuts for added texture, now is the time to fold them into the batter. Stir gently until evenly distributed throughout. This extra step brings a delightful crunch that complements the moist brownie bars, enhancing the overall flavor of your Banana Bread Brownies.
Step 6: Pour and Spread the Batter
Carefully transfer the batter to your prepared jelly roll pan, using a spatula to smooth it out evenly. Ensure the batter fills all corners of the pan to achieve uniformly baked Banana Bread Brownies. The spreading is key to even cooking, so take your time with this step.
Step 7: Bake to Perfection
Place your filled pan in the preheated oven and bake for 20-25 minutes. Keep an eye on the brownies; they’re done when they turn golden brown and a toothpick inserted in the center comes out clean or with a few moist crumbs attached. This indicates a deliciously baked batch ready to cool.
Step 8: Make the Brown Butter Frosting
While the brownies cool, prepare the luscious brown butter frosting. Melt butter in a saucepan over medium heat until it turns golden brown and develops a nutty aroma, about 5-7 minutes. Be sure to stir constantly to prevent burning. Once browned, remove from heat and set aside to cool slightly.
Step 9: Whisk in Frosting Ingredients
In a mixing bowl, whisk together the powdered sugar, vanilla extract, and milk with the browned butter. Beat until the frosting is smooth and creamy, adjusting the milk as needed for desired consistency. This rich and flavorful topping will elevate your Banana Bread Brownies to a new level of indulgence.
Step 10: Frost the Brownies
Once the brownies have cooled slightly, spread the brown butter frosting generously over the top using a spatula. Allow the frosting to set for a few minutes before slicing the brownies into squares. This final touch makes your Banana Bread Brownies not only delicious but also beautifully presentable for everyone to enjoy.
Expert Tips for Banana Bread Brownies
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Choose Ripe Bananas: Opt for overripe bananas, which are sweeter and yield more moisture, ensuring your brownies are soft and flavorful.
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Mixing Matters: Avoid over-mixing the batter once the flour is added. A few lumps are okay; this helps maintain the tenderness of your Banana Bread Brownies.
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Cool Before Frosting: Allow the brownies to cool slightly before adding the frosting. This prevents the frosting from melting and ensures a nice, thick layer on top.
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Check Ingredient Freshness: Make sure your baking soda is fresh for optimal rise. Old baking soda may lead to dense, flat brownies.
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Customize Your Nuts: If using walnuts, toast them lightly before adding to amplify their flavor and crunch, enhancing your Banana Bread Brownies experience.
What to Serve with Moist Banana Bread Brownies?
Indulging in these rich, soft bars brings joy to any occasion, but pairing them right can elevate your experience even further.
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Vanilla Ice Cream: Creamy vanilla ice cream perfectly balances the moistness of the brownies, creating a delightful contrast of textures that melts in your mouth.
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Fresh Berries: Juicy strawberries or tart raspberries add a burst of fruity freshness, cutting through the sweetness of the brownies and elevating their flavor profile.
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Coffee: A steaming cup of coffee complements the nutty flavors of the brown butter frosting, enhancing the overall richness of the dessert while providing a cozy vibe.
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Whipped Cream: Light and airy whipped cream is a fantastic addition that adds a luscious layer of creaminess, making each bite of the brownies even more enjoyable.
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Chocolate Sauce: Drizzling warm chocolate sauce over the brownies adds an extra layer of indulgence, perfect for the chocolate lovers in your life.
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Caramel Sauce: A drizzle of rich caramel provides a sweet contrast that pairs beautifully with the banana flavors, making for a decadent experience with every bite.
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Chopped Nuts: Serve with a sprinkle of toasted walnuts or pecans to enhance the nutty notes in the brownies and add a satisfying crunch that elevates the dish.
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Chai Tea: The warm spices in chai tea harmonize beautifully with the flavors of the brownies, offering a comforting drink pairing that’s both soothing and delicious.
Banana Bread Brownies Variations & Substitutions
Feel free to explore these delightful twists, and let your creativity shine in the kitchen!
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Nut-Free: Simply omit the walnuts or swap them for sunflower seeds for a crunchy texture without the nuts.
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Vegan: Substitute eggs with flaxseed meal (1 tablespoon mixed with 2.5 tablespoons water) and use non-dairy butter and plant-based milk.
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Chocolate Lovers: Add 1 cup of chocolate chips to the batter for a rich, chocolatey flavor that complements the banana beautifully.
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Cinnamon Spice: Add 1 teaspoon of cinnamon or a pinch of nutmeg to the batter for a warm, spiced twist that elevates the flavor profile.
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Brown Sugar Swap: Replace regular sugar with brown sugar to enhance the moisture and depth of flavor in your brownies.
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Frosting Alternatives: Try cream cheese frosting instead of brown butter frosting for a tangy sweetness that contrasts nicely with the bananas.
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Extra Fruity: Mix in 1/2 cup of chopped strawberries or blueberries into the batter for a fresh burst of fruitiness that pairs perfectly with bananas.
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Whole Wheat Mix: Substitute half of the all-purpose flour with whole wheat flour to add a hearty flavor and nutrient boost while still keeping them delicious.
Feel free to explore additional flavor profiles or variations, and remember to check out my other recipes like this Knead Artisan Bread for those days you’re in the mood for more baking adventures!
How to Store and Freeze Banana Bread Brownies
Room Temperature: Store your Banana Bread Brownies in an airtight container for up to 3 days; this keeps them moist and delicious.
Fridge: If you’d like a longer shelf life, keep the brownies in the fridge, where they can last up to a week. Just remember to tightly wrap them to avoid drying out.
Freezer: For extended storage, freeze un-frosted brownies in a single layer. Once solid, transfer them to a freezer-safe bag for up to 3 months.
Reheating: Thaw brownies in the fridge overnight, then enjoy at room temperature or pop them in the microwave for a few seconds for that fresh-baked warmth, especially with the luscious frosting!
Make Ahead Options
These Banana Bread Brownies are perfect for meal prep enthusiasts who want to save time during busy weeks! You can prepare the brownie batter up to 24 hours in advance by mixing the wet and dry ingredients separately and storing them in airtight containers in the refrigerator. When ready to bake, simply combine them and pour into your prepared pan, then proceed with the baking instructions. The frosted brownies can also be stored in an airtight container for up to 3 days at room temperature; if you want to enjoy them even fresher, freeze the unfrosted bars for up to 3 months and frost them right before serving. This way, you’ll have delicious, ready-to-go Banana Bread Brownies that are just as delightful as fresh-baked!
Banana Bread Brownies Recipe FAQs
How do I choose ripe bananas for the best flavor?
Absolutely! You want bananas that are overripe for this recipe. Look for bananas that are heavily speckled with brown or even black spots. These bananas are sweeter and provide the moisture you need, resulting in deliciously soft and flavorful Banana Bread Brownies.
What’s the best way to store Banana Bread Brownies?
I often store my Banana Bread Brownies in an airtight container at room temperature for up to 3 days. If you want them to last longer, refrigerate them, and they’ll be good for about a week. Just make sure they’re well-wrapped to keep them from drying out!
Can I freeze my Banana Bread Brownies?
Certainly! If you’d like to save some for later, freeze un-frosted brownies in a single layer. Once they’re firm, transfer them to a freezer-safe bag. They’ll stay fresh for up to 3 months. When you’re ready to enjoy them, just thaw in the fridge overnight and frost afterward for the best results.
What should I do if my brownies are too dense?
Very common! If you find your Banana Bread Brownies are too dense, make sure your baking soda is fresh and properly measured. Over-mixing the batter, especially after adding flour, can also lead to dense brownies. Mix just until combined for a lighter texture, and avoid compacting the batter in the pan.
Are there any dietary considerations I should be aware of?
If you have any nut allergies, you can easily omit the chopped walnuts in this recipe. For those who are vegan, substitute eggs with flaxseed meal or applesauce and use non-dairy milk and vegan butter in the frosting. These adjustments can make this delightful treat accessible for everyone!

Melt-in-Your-Mouth Banana Bread Brownies for Cozy Days
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and grease and flour a 15x10-inch jelly roll pan.
- In a large mixing bowl, combine sugar, sour cream, softened butter, and eggs. Mix until smooth and creamy for 2-3 minutes.
- Mix in the mashed bananas and vanilla extract until fully combined.
- Sprinkle the all-purpose flour, baking soda, and salt over the wet mixture. Gently fold until just combined.
- If using walnuts, fold them into the batter.
- Transfer the batter to the prepared jelly roll pan and smooth it out evenly.
- Bake for 20-25 minutes until golden brown and a toothpick comes out clean.
- Melt butter in a saucepan until it turns golden brown and develops a nutty aroma. Remove from heat and cool slightly.
- In a mixing bowl, whisk together powdered sugar, vanilla extract, and milk with the browned butter until smooth and creamy.
- Spread the brown butter frosting over the cooled brownies and slice into squares.



