Delicious banana bread brownies served on a plate.

Banana Bread Brownies

Just imagine biting into a soft, chewy brownie that bursts with banana flavor and is topped with silky frosting. Pure bliss, right?

These Banana Bread Brownies are not just your average dessert; they’re the perfect blend of moist banana bread and a decadent brownie. With an easy one-pan recipe that yields a creamy, dreamy treat, you’ll find it hard to resist grabbing another square once you’ve devoured one.

Why make this recipe

Why should you jump on this delicious banana boat? Here’s the scoop:

  • One-Bowl Wonder: Minimal cleanup means more time to relax on the couch binge-watching your favorite show. Who doesn’t love that?
  • Kid-Friendly & Family Approved: Pack extra bananas into your kids’ bellies disguised as brownies. Sneaky, right?
  • Quick & Affordable: Got some ripe bananas lying around? You can whip these up with basic pantry staples quicker than you can say “snack time!”

Ingredients

You don’t need fancy stuff — just these basics!

For the Brownies:

  • 1 cup (200 g) granulated sugar
  • 1 cup (240 ml) sour cream (or plain Greek yogurt)
  • ½ cup (113 g) unsalted butter, softened
  • 2 large eggs
  • 4 ripe bananas (mashed, about 2 cups)
  • 2 teaspoons pure vanilla extract
  • 2 cups (250 g) all-purpose flour
  • 1 teaspoon baking soda
  • ¾ teaspoon salt
  • ½ cup (60 g) chopped walnuts (optional)

For the Frosting:

  • ½ cup (113 g) unsalted butter
  • 4 cups (480 g) powdered sugar
  • 1½ teaspoons pure vanilla extract
  • 3 tablespoons milk (more if needed for spreading)

Directions

  1. Prepare the Pan:

    • Preheat oven to 350°F (175°C).
    • Grease and flour a 9×13-inch baking dish or line with parchment paper.
  2. Make the Banana Brownie Batter:

    • In a large mixing bowl, cream together sugar, sour cream, and softened butter until light and fluffy.
    • Beat in eggs, mashed bananas, and vanilla extract until smooth.
    • In a separate bowl, whisk together flour, baking soda, and salt.
    • Gradually add dry ingredients to wet mixture, mixing just until combined.
    • Fold in walnuts, if using.
  3. Bake:

    • Pour batter into the prepared pan and spread evenly.
    • Bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean.
    • Let cool in the pan on a wire rack.
  4. Prepare the Frosting:

    • In a small saucepan, melt butter over medium heat and cook until it turns a light golden brown and smells nutty (about 4–5 minutes).
    • Remove from heat and let cool slightly.
    • Whisk in powdered sugar, vanilla, and milk until smooth and spreadable.
  5. Frost and Serve:

    • Spread frosting over cooled brownies.
    • Cut into squares or bars and serve.

Banana Bread Brownies

How to make Banana Bread Brownies (Overview)

Making these brownies is as easy as pie—wait, actually, easier than a pie! Start by mastering that creamy batter, then gently fold in the dry ingredients. The secret is in not overmixing—trust me, you’ll thank me later when you chew into that perfect texture!

  • Creaming the butter and sugar until fluffy is key.
  • Take your time browning the butter for the frosting—those nutty flavors bring everything together.
  • Remember, patience is a virtue! Let those brownies cool before frosting; no one likes a melty mess.

How to serve Banana Bread Brownies

Cut these beauties into generous squares and enjoy them warm or at room temperature. For an added treat, serve with a scoop of vanilla ice cream on top. The contrast of warm brownies with cold ice cream creates a delightful sensation. Top it off with a sprinkle of chopped walnuts for an extra crunch and visual appeal!

How to store Banana Bread Brownies

These yummy brownies keep well at room temperature for about 2-3 days in an airtight container. If you want them to last longer, pop them in the fridge for up to a week.

Want to save them for another day? Freeze them! Just wrap them tightly and keep them in the freezer for up to 3 months. When you’re ready to indulge, let them thaw in the fridge overnight and warm them up slightly before serving.

Tips to make Banana Bread Brownies

  • Use very ripe bananas for maximum sweetness—think brown spots, not green!
  • Swap greek yogurt for sour cream for a lighter twist, but keep an eye on the consistency of the batter.
  • If you love a little extra crunch, feel free to sprinkle some chocolate chips in the batter—because why not?

Variation

Feeling a little adventurous?

  • Try adding cocoa powder for chocolate banana brownies. Just substitute ½ cup of flour for cocoa!
  • For a vegan version, use flax eggs and plant-based yogurt or applesauce instead of eggs and sour cream. The banana flavor will still shine through!

FAQs

1. Can I substitute the sour cream with something else?
Yes, plain Greek yogurt or even applesauce works great!

2. How can I make these brownies gluten-free?
Use a 1:1 gluten-free flour blend in place of all-purpose flour for a gluten-free treat.

3. Can I freeze leftover brownies?
Absolutely! Wrap them well and freeze for up to 3 months. Thaw before serving for best results.

📌 Pin this recipe for your next cozy dinner night!

Banana Bread Brownies

These Banana Bread Brownies are a delightful combination of moist banana bread and chewy brownies, topped with a silky frosting. A perfect treat for any occasion!
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 12 squares
Course: Dessert, Snack
Cuisine: American
Calories: 240

Ingredients
  

For the Brownies
  • 1 cup 1 cup granulated sugar
  • 1 cup 1 cup sour cream (or plain Greek yogurt) Can be substituted with Greek yogurt.
  • ½ cup ½ cup unsalted butter, softened
  • 2 large 2 large eggs
  • 4 ripe bananas 4 ripe bananas (mashed, about 2 cups) Use very ripe bananas for maximum sweetness.
  • 2 teaspoons 2 teaspoons pure vanilla extract
  • 2 cups 2 cups all-purpose flour
  • 1 teaspoon 1 teaspoon baking soda
  • ¾ teaspoon ¾ teaspoon salt
  • ½ cup ½ cup chopped walnuts (optional) Use if a crunch is desired.
For the Frosting
  • ½ cup ½ cup unsalted butter
  • 4 cups 4 cups powdered sugar
  • 1½ teaspoons 1½ teaspoons pure vanilla extract
  • 3 tablespoons 3 tablespoons milk Add more if needed for spreading.

Method
 

Prepare the Pan
  1. Preheat oven to 350°F (175°C).
  2. Grease and flour a 9×13-inch baking dish or line with parchment paper.
Make the Banana Brownie Batter
  1. In a large mixing bowl, cream together sugar, sour cream, and softened butter until light and fluffy.
  2. Beat in eggs, mashed bananas, and vanilla extract until smooth.
  3. In a separate bowl, whisk together flour, baking soda, and salt.
  4. Gradually add dry ingredients to wet mixture, mixing just until combined.
  5. Fold in walnuts, if using.
Bake
  1. Pour batter into the prepared pan and spread evenly.
  2. Bake for 25–30 minutes, or until a toothpick inserted in the center comes out clean.
  3. Let cool in the pan on a wire rack.
Prepare the Frosting
  1. In a small saucepan, melt butter over medium heat and cook until it turns a light golden brown and smells nutty (about 4–5 minutes).
  2. Remove from heat and let cool slightly.
  3. Whisk in powdered sugar, vanilla, and milk until smooth and spreadable.
Frost and Serve
  1. Spread frosting over cooled brownies.
  2. Cut into squares or bars and serve.

Notes

For an added treat, serve with a scoop of vanilla ice cream on top. Store in an airtight container at room temperature for 2-3 days or refrigerate for up to a week. Can be frozen for up to 3 months.

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