As I eagerly rummaged through my kitchen cabinet one rainy afternoon, I stumbled upon some overripe bananas, just waiting for a new life. That’s when the idea of Moist Banana Bread Brownies hit me. The combination of rich, delicious banana flavor and a fudgy brownie texture creates a dessert that’s not just easy to make but also irresistibly satisfying. With the addition of creamy sour cream and crunchy walnuts, these brownies promise to be incredibly moist, a real crowd-pleaser for both family gatherings and cozy nights at home. Plus, they’re versatile enough that you can customize them with your favorite mix-ins—think chocolate chips or a sprinkle of nuts! Who wouldn’t want to whip up a batch of these delightful treats? Curious to see how these come together? Let’s dive into the recipe!

Why are Banana Bread Brownies a must-try?
Irresistible Combination: These Moist Banana Bread Brownies combine the best of both worlds, bringing together the soft texture of banana bread and the rich fudginess of brownies.
Customizable Delight: You can easily modify the recipe by adding in your favorite ingredients like chocolate chips or pecans for a personalized touch.
Quick and Simple: The process is straightforward, making it perfect for novice bakers and busy cooks looking for a delicious dessert in no time.
Crowd-Pleasing Treat: They are sure to be a hit at any gathering, whether it’s a family dinner or a cozy get-together with friends. Pair them with a scoop of ice cream, and you’ll see why everyone loves them!
For more scrumptious ideas, check out these Cornbread Breakfast Casserole for a cozy brunch option or indulge in our Chocolate Cherry Brownies for something extra special.
Banana Bread Brownies Ingredients
For the Brownies
• All-purpose flour – Provides structure for the brownies; consider using whole wheat flour for added texture.
• Baking soda – Acts as a leavening agent to help brownies rise; ensure it’s fresh for best results.
• Salt – Enhances flavor and balances sweetness; a pinch can also intensify other flavors.
• Granulated sugar – Adds sweetness and helps with moisture; can be partially replaced with brown sugar for a richer flavor.
• Sour cream – Ensures moistness and adds tang; yogurt or buttermilk can substitute.
• Unsalted butter – Adds richness and flavor; melted coconut oil can be a dairy-free alternative.
• Large eggs – Bind ingredients and add moisture; flax eggs can serve as a vegan substitute.
• Mashed ripe bananas – Provides natural sweetness and moisture; overripe bananas work best.
• Vanilla extract – Enhances the overall flavor profile; use pure extract for better quality.
• Chopped walnuts – Adds crunch and nutty flavor; optional add-ins include chocolate chips or pecans.
For the Frosting
• Unsalted butter – Offers a rich base for the frosting; browning it adds depth of flavor.
• Powdered sugar – Provides sweetness and a smooth texture; sift before using for best results.
• Milk – Creates the perfect consistency; feel free to use a dairy-free alternative.
• Additional vanilla extract – Enhances the flavor of the frosting for a complete taste experience.
Your journey to delightfully chewy, moist Banana Bread Brownies starts with these simple ingredients. Ready to turn your overripe bananas into magic? Let’s keep mixing!
Step‑by‑Step Instructions for Banana Bread Brownies
Step 1: Preheat Oven and Prepare Pan
Preheat your oven to 375°F (190°C) to ensure even baking. While the oven is heating, grease a 9×13 inch baking pan with a bit of butter or non-stick spray. This will help the brownies release easily once baked, ensuring every bite is perfectly moist and fudgy, just like your favorite Banana Bread Brownies should be.
Step 2: Mix Wet Ingredients
In a large mixing bowl, combine granulated sugar, sour cream, and softened unsalted butter. Use a hand mixer or whisk to beat these ingredients together until they form a smooth and creamy mixture. Next, add in the large eggs, beating them in one at a time until fully incorporated. This mix creates the rich base of your Banana Bread Brownies.
Step 3: Add Bananas and Vanilla
Incorporate the mashed ripe bananas and pure vanilla extract into your wet mixture. Stir gently until everything is well blended. The ripe bananas not only add natural sweetness but also infuse a beautiful, rich flavor into your brownies. Feel free to use a fork to achieve a nice, smooth banana mash if you haven’t done so yet!
Step 4: Combine Dry Ingredients
In a separate bowl, whisk together flour, baking soda, and salt. Gradually add this dry mix to your banana mixture, stirring just until combined. Avoid overmixing, as this can lead to denser brownies. The goal is to achieve a thick batter that brings together the moistness of banana bread with a rich, fudgy brownie texture.
Step 5: Fold in Walnuts
Gently fold in the chopped walnuts into your brownie batter, ensuring they are evenly distributed without overmixing. This step adds a lovely crunch to your Banana Bread Brownies, making each bite satisfying. You can also mix in chocolate chips here if you’re looking for an extra indulgent treat!
Step 6: Bake the Brownies
Pour the brownie batter into the prepared pan and spread it evenly with a spatula. Bake in the preheated oven for 20 to 30 minutes. Check for doneness by inserting a toothpick into the center; it should come out mostly clean, with a few moist crumbs, indicating a deliciously fudgy texture.
Step 7: Prepare the Frosting
While your brownies are cooling, melt unsalted butter in a saucepan over medium heat until it turns a medium brown. This browning adds a nutty flavor that complements the frosting perfectly. Remove from heat and whisk in powdered sugar, milk, and a splash of vanilla extract until smooth and creamy.
Step 8: Frost and Serve
Once the brownies have cooled slightly, spread the warm frosting over the top using a spatula. Let the frosting set for a few minutes before cutting the brownies into squares. These Banana Bread Brownies are now ready to delight your taste buds, whether served warm or at room temperature.

How to Store and Freeze Banana Bread Brownies
Fridge: Store your Banana Bread Brownies in an airtight container for up to 5 days. This keeps them moist and delicious, ready for your late-night cravings or afternoon snacks.
Freezer: For longer storage, wrap the brownies tightly in plastic wrap and place them in an airtight freezer bag. They can be frozen for up to 3 months, preserving their fudgy goodness until you’re ready to enjoy them.
Thawing: When you’re ready to indulge, thaw the brownies in the fridge overnight or allow them to sit at room temperature for about 2 hours before serving. They’ll taste just as fresh as the day you made them!
Reheating: For a cozy treat, warm individual brownies in the microwave for about 10-15 seconds. Pair with a scoop of ice cream to elevate your dessert experience!
Expert Tips for Banana Bread Brownies
Ripe Bananas Matter: Always use ripe bananas for maximum sweetness and moisture; they elevate the flavor of your Banana Bread Brownies.
Mix Wisely: Do not overmix the batter; this prevents dense brownies. Mix just until combined for that perfect fudgy texture.
Cool Before Frosting: Let the brownies cool completely before adding frosting; this ensures the frosting sets beautifully rather than melting into the brownies.
Toothpick Test: Use a toothpick to check for doneness; brownies should be slightly underbaked for that gooey, fudgy consistency you crave.
Storage Tips: Store brownies in an airtight container in the fridge for up to 5 days to maintain their moisture and deliciousness.
Make Ahead Options
These Moist Banana Bread Brownies are perfect for meal prep, allowing you to save time on busy weeknights! You can prepare the brownie batter up to 24 hours in advance. Simply mix all the wet and dry ingredients, then store the batter in an airtight container in the refrigerator. To maintain quality, it’s best to cover it tightly to prevent drying or absorbing odors. When ready to bake, simply pour the batter into the prepared pan and bake as directed. You can also frost the brownies a few hours in advance, allowing the flavors to meld for a more delicious treat. Enjoy the convenience of having a delectable dessert ready at your fingertips!
Banana Bread Brownies Variations
Feel free to let your creativity run wild and customize these brownies to suit your taste buds!
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Nut-Free: Omit the walnuts entirely or substitute with sunflower seeds for a nut-free version.
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Dairy-Free: Swap butter for coconut oil and use almond milk in the frosting for a dairy-free delight. You’ll still achieve that moist, decadent texture!
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Sugar-Free: Replace granulated sugar with a sugar substitute like erythritol for a lower-calorie treat that everyone can enjoy.
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Adding Spice: Sprinkle in some cinnamon or nutmeg to the batter for a warm, spiced twist that takes these brownies to a whole new level.
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Fruity Burst: Fold in chopped strawberries or raspberries in addition to the bananas for a delicious, fruity surprise in every bite!
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Chocolate Lovers: Incorporate chocolate chips or chunks into the batter for an ultra-fudgy chocolate version of these banana brownies. A chocoholic’s dream!
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Swirled Goodness: Create a marbled effect by swirling in some peanut butter or Nutella on top of the batter before baking for some extra indulgence.
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Toppings Galore: Finish them off with a drizzle of caramel or a sprinkle of sea salt to elevate the flavor profile of your brownies.
These Banana Bread Brownies are incredibly versatile, and I’m sure you’ll love each unique twist! If you’re in the mood for other delightful baked treats, don’t forget to try our Snickerdoodle Bread Moist for a sweet twist, or our Air Fryer Bread for a fun cooking method. Enjoy the process!
What to Serve with Moist Banana Bread Brownies?
Imagine a cozy gathering where laughter fills the air, and you have the perfect dessert ready to delight everyone.
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Vanilla Ice Cream: Creamy and cool, it contrasts beautifully with the warm, fudgy brownies, elevating each bite to pure bliss.
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Fresh Berries: A tart burst of flavors from raspberries or strawberries adds brightness, balancing the sweet richness of the brownies.
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Whipped Cream: Light and airy, it enhances the brownies’ moist texture—perfect for those who love a decadent dessert experience.
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Chocolate Sauce: Drizzling warm chocolate sauce on top creates an indulgent twist, adding an extra layer of gooey sweetness.
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Coffee: A rich cup of brewed coffee pairs perfectly, enhancing the brownies’ chocolatey notes and providing a satisfying end to any meal.
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Chopped Nuts: Serve with a side of extra walnuts or pecans for crunch, allowing guests to personalize their experience with delightful textures.
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Mint Tea: A soothing herbal tea cleanses the palate, making this combo a harmonious match for your fudgy banana bread brownies.
Creating a full meal alongside these brownies transforms your dessert into an unforgettable experience, sweetening any occasion!

Banana Bread Brownies Recipe FAQs
What kind of bananas should I use for the best Banana Bread Brownies?
Absolutely! Overripe bananas are ideal for these brownies, as their natural sweetness and soft texture blend perfectly into the batter. Look for bananas with dark spots all over or those that are starting to turn black; this means they’re bursting with flavor and moisture, perfect for baking!
How do I store Banana Bread Brownies?
To keep your Banana Bread Brownies moist and delicious, store them in an airtight container in the fridge for up to 5 days. This way, you can easily grab a brownie anytime your sweet tooth calls! If you want to enjoy them later, wrap the brownies tightly in plastic wrap and place them in an airtight freezer bag for up to 3 months.
Can I freeze Banana Bread Brownies?
Absolutely! To freeze them, first cool the brownies completely and then wrap individual pieces in plastic wrap. Place them in a freezer-safe container or bag. When you’re ready to enjoy, simply thaw them in the refrigerator overnight or at room temperature for about 2 hours. For a warm treat, you can microwave them for 10-15 seconds!
What should I do if my brownies turn out too dense?
No worries! Dense brownies can often result from overmixing the batter, which can incorporate too much air. For a lighter texture, mix the wet and dry ingredients just until combined, leaving some lumps in the batter. Also, make sure to check your baking time; underbaking slightly can result in that wonderful fudgy consistency you desire.
Are there any dietary considerations for this recipe?
Yes! If you have any dietary restrictions, you can make a few adjustments. Opt for flax eggs instead of regular eggs for a vegan version, and use coconut oil instead of butter for dairy-free brownies. Additionally, ensure the chocolate chips (if added) are dairy-free if needed. Enjoy these variations without compromising on flavor!
Can I customize the toppings for my Banana Bread Brownies?
Very! The beauty of these brownies lies in their versatility. Feel free to add your favorite mix-ins, like chocolate chips, nuts (pecans work beautifully too), or even a sprinkle of cinnamon for warmth. You can also top them with a scoop of ice cream or whipped cream for an indulgent treat—have fun with it!

Moist Banana Bread Brownies That Will Melt in Your Mouth
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and grease a 9x13 inch baking pan.
- Combine granulated sugar, sour cream, and softened unsalted butter in a mixing bowl.
- Add large eggs one at a time, mixing until fully incorporated.
- Mix in mashed ripe bananas and vanilla extract until well blended.
- In a separate bowl, whisk together flour, baking soda, and salt.
- Gradually add dry mix to wet mixture, stir until combined.
- Fold in chopped walnuts and mix evenly without overmixing.
- Pour brownie batter into prepared pan and bake for 20-30 minutes.
- Melt unsalted butter in saucepan; whisk in powdered sugar, milk, and vanilla for frosting.
- Spread warm frosting over cooled brownies and cut into squares.

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