Sour Cream Banana Bars with Brown Butter Frosting

Indulge in the ultimate treat with these Sour Cream Banana Bars with Brown Butter Frosting—an irresistible combination of moist banana cake and rich, nutty frosting. Perfectly balanced with the tangy creaminess of sour cream and the natural sweetness of ripe bananas, these bars are whisked together in just 20 minutes and baked to golden perfection. The crowning glory is the luxurious brown butter frosting, made by gently toasting butter to enhance its deep, caramel-like flavor. This recipe yields soft, melt-in-your-mouth bars that are perfect for parties, potlucks, or an everyday dessert. With each bite, enjoy layers of nostalgia and decadence in one easy-to-make treat!

Nutriscore Rating: 35/100

Prep Time:20 mins

Cook Time:25 mins

Total Time:45 mins

Servings: 24

Ingredients

• 0.5 cup Butter, softened
• 1.5 cups Granulated sugar
• 2 large Eggs
• 1 cup Sour cream
• 1 cup Ripe bananas, mashed
• 1 teaspoon Vanilla extract
• 2 cups All-purpose flour
• 1 teaspoon Baking soda
• 0.5 teaspoon Salt
• 0.5 cup Butter for frosting
• 2 cups Powdered sugar
• 2 tablespoons Milk
• 0.5 teaspoon Vanilla extract for frosting

Directions

Step 1

Preheat your oven to 350°F (175°C) and grease a 10x15-inch jelly roll pan or line it with parchment paper.

Step 2

In a large mixing bowl, cream the softened butter and granulated sugar together until light and fluffy.

Step 3

Beat in the eggs, one at a time, ensuring each is fully incorporated before adding the next.

Step 4

Mix in the sour cream, mashed bananas, and vanilla extract until well combined.

Step 5

In a separate bowl, whisk together the all-purpose flour, baking soda, and salt.

Step 6

Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Avoid overmixing.

Step 7

Pour the batter into the prepared pan and spread it evenly.

Step 8

Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean. Allow the bars to cool completely in the pan.

Step 9

To prepare the frosting, melt 1/2 cup of butter in a saucepan over medium heat. Stir constantly until the butter turns a golden brown color and develops a nutty aroma. Remove from heat immediately.

Step 10

In a large mixing bowl, combine the browned butter, powdered sugar, milk, and vanilla extract. Beat until smooth and creamy. Add more milk, 1 teaspoon at a time, if the frosting is too thick.

Step 11

Spread the brown butter frosting evenly over the cooled banana bars.

Step 12

Cut into squares and serve. Store any leftovers in an airtight container at room temperature for up to 3 days.

Nutrition Facts

Serving size	(1612.1g)

Amount per serving	% Daily Value*
Calories	5486.5

Total Fat 251.1g	0%
Saturated Fat 156.1g	0%
Polyunsaturated Fat 0.0g
Cholesterol 1006.3mg	0%
Sodium 3094.3mg	0%
Total Carbohydrate 792.1g	0%
Dietary Fiber 12.3g	0%
Total Sugars 581.3g
Protein 50.5g	0%

Vitamin D 153.3IU	0%
Calcium 495.5mg	0%
Iron 13.7mg	0%
Potassium 1311.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 40.1%

Protein: 3.6%

Carbs: 56.3%