Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 375°F (190°C) and grease a 15x10-inch jelly roll pan with butter or cooking spray, then dust with flour.
- In a large mixing bowl, combine sugar, sour cream, softened butter, and eggs using a hand mixer. Beat for about 2 minutes until smooth and fluffy.
- Mash the overripe bananas until smooth and fold into the creamy mixture. Add vanilla extract and blend on low speed until combined.
- In a separate bowl, sift together flour, baking soda, and salt. Gradually add to wet ingredients and mix until just combined.
- Fold in walnuts if using. Pour the batter into the prepared pan, ensuring a smooth surface.
- Bake for 20 to 25 minutes, checking for doneness with a toothpick.
- Allow brownies to cool in the pan for about 10 minutes.
- In a saucepan, melt butter over medium heat until golden brown. Remove from heat, whisk with powdered sugar, vanilla, and milk until smooth.
- Spread the brown butter frosting generously over the cooled brownies.
Nutrition
Notes
Use very ripe bananas for the best flavor. Avoid overmixing to keep the brownies tender. Store in an airtight container to maintain moisture.
