Banana Bread Brownies

If you love banana bread and brownies, get ready for the best of both worlds! These Banana Bread Brownies are incredibly moist, rich, and packed with banana flavor, all topped with a buttery brown sugar frosting. Whether for a snack, dessert, or special occasion, they’re guaranteed to impress!

Why This Recipe Works

✔ Super Moist & Tender – Thanks to sour cream and mashed bananas, these brownies stay deliciously soft.

✔ Easy to Make – Just mix, bake, and frost! No complicated steps.

✔ Irresistible Brown Butter Frosting – The rich, nutty flavor of browned butter takes these brownies to another level.

✔ Perfect for Any Occasion – Great for breakfast, snacks, or a sweet treat after dinner!

What You’ll Need for This Recipe

Ingredients

For the Brownies:

✅ 2 eggs – Helps bind the ingredients together.
✅ 3 ripe bananas, mashed – Adds natural sweetness and moisture.
✅ 1½ cups sugar – For the perfect level of sweetness.
✅ 1 cup sour cream – Ensures ultra-moist brownies.
✅ ½ cup butter, softened – Adds richness.
✅ 2 teaspoons vanilla extract – Enhances the banana flavor.
✅ 2 cups all-purpose flour – The base for the brownies.
✅ 1 teaspoon baking soda – Helps them rise.
✅ ¾ teaspoon salt – Balances the sweetness.
✅ ½ cup walnuts, chopped – Adds a delicious crunch!

For the Brown Butter Frosting:

✅ ½ cup butter – The key to a rich, nutty frosting.
✅ 3 cups powdered sugar – Creates a smooth, sweet topping.
✅ 1½ teaspoons vanilla extract – Adds warmth.
✅ 3 tablespoons milk – Adjusts the consistency.

How to Make Banana Bread Brownies

Step 1: Preheat & Prepare

Preheat your oven to 375°F (190°C) and grease a 13 x 9-inch baking pan.

Step 2: Make the Batter

1️⃣ In a large bowl, beat together:
✔ Sugar (1½ cups)
✔ Sour cream (1 cup)
✔ Butter (½ cup, softened)
✔ Eggs (2 large)

Mix until smooth and creamy.

2️⃣ Blend in:
✔ Mashed bananas (3 large)
✔ Vanilla extract (2 teaspoons)

3️⃣ Add dry ingredients:
✔ Flour (2 cups)
✔ Baking soda (1 teaspoon)
✔ Salt (¾ teaspoon)

Mix for 1 minute until fully combined. Stir in ½ cup chopped walnuts.

Step 3: Bake the Brownies

Spread the batter evenly into the prepared pan. Bake for 25 minutes or until golden brown.

Step 4: Make the Frosting

1️⃣ In a large saucepan, melt ½ cup butter over medium heat. Cook until it turns a medium brown color (be careful not to burn it!).

2️⃣ Remove from heat and whisk in:
✔ Powdered sugar (3 cups)
✔ Vanilla extract (1½ teaspoons)
✔ Milk (3 tablespoons, added gradually)

Whisk until smooth and spreadable.

Step 5: Frost & Cool

1️⃣ Pour the warm frosting over the warm banana brownies. Spread evenly.
2️⃣ Let them cool completely before slicing into squares.

Tips + Tricks & More for Recipe Success

✔ Use Ripe Bananas – The riper, the better! Brown, spotty bananas add the most flavor.

✔ Don’t Overmix the Batter – Overmixing can make the brownies dense instead of soft.

✔ Watch the Butter While Browning – Stir constantly to prevent burning.

✔ Adjust Frosting Consistency – If too thick, add more milk 1 teaspoon at a time. If too thin, add more powdered sugar.

✔ For Extra Flavor – Add a pinch of cinnamon or nutmeg to the batter.

Serving Suggestions

✔ Classic & Simple – Enjoy as-is for a perfect snack.
✔ With Ice Cream – Pair with vanilla ice cream for an indulgent dessert.
✔ Drizzled with Caramel – Add a drizzle of warm caramel sauce for extra decadence.
✔ With Coffee or Tea – A perfect afternoon treat!

Frequently Asked Questions (FAQs)

Can I Make These Without Nuts?

Yes! Simply omit the walnuts, and they’ll still be delicious.

How Should I Store Banana Bread Brownies?

Room Temperature: Store in an airtight container for up to 3 days.

Refrigerator: Store for up to a week for extra freshness.

Freezing: Wrap individual brownies in plastic wrap and freeze for up to 3 months.

Can I Use Greek Yogurt Instead of Sour Cream?

Yes! Plain Greek yogurt works as a great substitute.

Why Is My Frosting Too Thick?

If it thickens too much before spreading, warm it slightly or add a splash of milk to loosen it.

Final Thoughts

These Banana Bread Brownies are the ultimate moist, flavorful, and buttery dessert. With their soft banana-infused base and rich brown butter frosting, they’re guaranteed to be a family favorite. Perfect for potlucks, parties, or just a sweet treat at home, they vanish fast—so be sure to make extra!

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