Easy Banana Bars Recipe with Brown Butter Frosting
This is the best Banana Bars Recipe. Soft, moist banana cake with a drool worthy brown butter frosting. This is the best way to use brown bananas and ideal for breakfast, desserts, and gatherings!
Servings 12 people
Ingredients
For the cake:
- 1½ cup sugar
- 1/2 cup butter soft
- 1 cup sour cream
- 2 large eggs
- 1 teaspoon vanilla extract
- 3 ripe bananas mashed (1 1/2 cups or 340-350g)
- 2 cups all-purpose flour
- 1 teaspoon salt
- 1 teaspoon baking soda
For the frosting:
- 1/2 cup butter
- 4 cups powdered sugar
- 2 teaspoons vanilla extract
- 6 Tablespoons milk
Instructions
Make the Banana Bars
- Set your oven to 375°F. Generously grease a 10×15-inch jelly roll pan with butter or line it with parchment paper. Set aside.
- In a large mixing bowl, whisk together the softened butter and sugar for about 1 minute, until the mixture looks light and creamy.
- Stir in the sour cream and mix until smooth.
- Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
- Mix in the mashed bananas until evenly combined.
- Add the flour, salt, and baking soda. Stir gently just until the batter comes together and no dry flour remains. Avoid overmixing.
- Pour the batter into the prepared pan and spread it evenly to the edges.
- Bake for 20–25 minutes, or until a toothpick inserted in the center comes out clean.
- Allow the bars to cool fully in the pan before adding the frosting.
Make the Brown Butter Frosting
- Add the butter to a small saucepan over medium heat. Let it melt, then continue cooking while stirring occasionally until it turns light golden brown and smells nutty.
- Remove the pan from the heat. Whisk in the powdered sugar, vanilla, and milk until smooth.
- Pour the frosting over the completely cooled bars and spread evenly with a spatula.
- Once the frosting sets slightly, cut into squares and serve.
Nutrition
Serving: 12people