Description
Say hello to your new cozy-day obsession! These Banana Bread Brownies are the ultimate mash-up of two beloved treats—soft, rich banana bread meets fudgy brownie texture, topped with a dreamy vanilla frosting that’ll have you licking the spatula. Born from a happy accident and perfected with a dollop of sour cream and a whole lot of love, this recipe is pantry-friendly, fuss-free, and absolutely irresistible. Whether it’s a lazy Sunday or a “treat yourself” Tuesday, this one-pan wonder delivers sweet, gooey joy every time.
Ingredients
Brownies
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2 eggs
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3 ripe bananas (about 1½ cups mashed)
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1½ cups sugar (swap ½ cup for brown sugar if desired)
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1 cup sour cream (or full-fat Greek yogurt)
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½ cup melted butter
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2 tsp vanilla extract
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2 cups all-purpose flour
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1 tsp baking soda
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½ tsp salt
Frosting
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½ cup butter, softened
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3 cups powdered sugar, sifted
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1½ tsp vanilla extract
Instructions
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Preheat oven to 350°F (175°C). Grease and parchment-line a 9×13″ pan.
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In a large bowl, mash bananas. Add eggs, sugar, sour cream, melted butter, and vanilla. Mix until smooth.
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In another bowl, whisk flour, baking soda, and salt. Fold into wet mix until just combined.
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Pour batter into pan, smooth top. Bake 25–30 mins until toothpick comes out with moist crumbs. Cool completely.
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For frosting, beat butter until creamy. Add sugar gradually, then vanilla. Beat until fluffy.
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Frost cooled brownies, slice, and enjoy!
Notes
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Let frosting set before slicing for cleaner edges.
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Store covered at room temp up to 3 days or freeze unfrosted squares.
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Tastes even better the next day!
Nutrition
- Calories: 320 kcal per serving
- Sugar: 28g
- Fat: 14g
- Carbohydrates: 45g
- Protein: 3g