Frosted Banana Bars Recipe

Why You’ll Love This Recipe

I love these Frosted Banana Bars because ripe bananas give the batter plenty of natural moisture and flavor. The bars stay soft and tender, while the slightly tangy cream cheese frosting balances their sweetness.

I also like how easy they are to serve. Instead of frosting individual cupcakes or cookies, I bake everything in one pan, spread the frosting over the cooled bars, and cut them into individual portions. I can also add nuts, chocolate, or warm spices when I want to change the flavor.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the banana bars:

• 1/2 cup unsalted butter, softened
• 1 1/2 cups granulated sugar
• 2 large eggs
• 1 cup sour cream
• 1 teaspoon vanilla extract
• 1 1/2 cups mashed ripe bananas
• 2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 teaspoon ground cinnamon, optional

For the cream cheese frosting:

• 8 ounces cream cheese, softened
• 1/2 cup unsalted butter, softened
• 3 cups powdered sugar
• 1 teaspoon vanilla extract
• Pinch of salt

Directions

1. I preheat my oven to 350°F (175°C) and lightly grease a 10×15-inch baking pan or line it with parchment paper.
2. I add the softened butter and granulated sugar to a large mixing bowl and beat them together until light and creamy.
3. I add the eggs one at a time, mixing well after each addition.
4. I mix in the sour cream, vanilla extract, and mashed bananas until everything is evenly combined.
5. In a separate bowl, I whisk together the flour, baking soda, salt, and optional cinnamon.
6. I gradually add the dry ingredients to the banana mixture and stir just until combined. I avoid overmixing because I want the finished bars to stay soft and tender.
7. I spread the batter evenly in my prepared pan, making sure it reaches the corners.
8. I bake for about 22 to 27 minutes, or until the top is lightly golden and a toothpick inserted near the center comes out clean or with a few moist crumbs.
9. I remove the pan from the oven and let the banana bars cool completely before adding the frosting.
10. To make the cream cheese frosting, I beat the softened cream cheese and butter together until smooth and creamy.
11. I gradually add the powdered sugar, then mix in the vanilla extract and a pinch of salt. I continue beating until the frosting is light and smooth.
12. I spread the cream cheese frosting evenly over the completely cooled banana bars.
13. I cut the frosted banana bars into squares or rectangles and serve.

Servings and Timing

This recipe makes approximately 24 Frosted Banana Bars.

• Prep time: 20 minutes
• Cook time: 22–27 minutes
• Cooling and frosting time: About 45 minutes
• Total time: About 1 hour 30 minutes
• Servings: Approximately 24 bars

I can cut smaller pieces when I’m serving these bars at a party or larger squares when I’m making them for dessert.

Variations

For Banana Walnut Bars, I fold about 3/4 cup of chopped walnuts or pecans into the batter. I can also sprinkle additional nuts over the cream cheese frosting for a crunchy finish.

For Chocolate Chip Banana Bars, I add semisweet or milk chocolate chips to the batter. I love the combination of sweet banana and chocolate.

When I want extra spice, I add cinnamon and a small pinch of nutmeg to the dry ingredients. This gives my banana bars a warmer flavor without overpowering the fruit.

For chocolate-frosted banana bars, I replace the cream cheese frosting with chocolate buttercream or add a little cocoa powder to the frosting.

I can also drizzle caramel sauce over the frosted bars shortly before serving. I especially like adding a sprinkle of chopped pecans with the caramel for a more indulgent variation.

Storage/Reheating

Because I frost these banana bars with cream cheese frosting, I store leftovers in an airtight container in the refrigerator. I keep them refrigerated for up to 5 days.

I like letting a refrigerated bar sit at room temperature for about 15 to 20 minutes before serving. This softens both the cake and frosting and brings out more of the banana flavor.

For longer storage, I can freeze the bars for up to 2 months. I freeze them until the frosting is firm, then wrap individual portions or place them in a freezer-safe container with parchment paper between layers.

I thaw frozen Frosted Banana Bars overnight in the refrigerator. I don’t usually reheat them because of the cream cheese frosting, but I can freeze unfrosted bars separately and warm those briefly before adding fresh frosting.

FAQs

How ripe should my bananas be for Frosted Banana Bars?

I prefer bananas with plenty of brown spots on their peels. Very ripe bananas are softer, sweeter, and easier for me to mash, and they give the bars a stronger banana flavor.

Why are my banana bars dry?

I avoid overbaking the bars and measure my flour carefully. I remove the pan once a toothpick inserted near the center comes out clean or with a few moist crumbs. I also avoid overmixing after adding the flour.

Can I make Frosted Banana Bars ahead of time?

Yes. I can bake the banana bars a day ahead, let them cool, and keep them covered. I can also frost them ahead and refrigerate them until I’m ready to serve.

Can I make the banana bars without cream cheese frosting?

Yes. I can leave the bars unfrosted, dust them lightly with powdered sugar, add a simple vanilla glaze, or use buttercream instead. I find the cream cheese frosting especially delicious because its slight tang balances the sweetness of the banana bars.

Do Frosted Banana Bars need to be refrigerated?

Yes. Once I add cream cheese frosting, I keep the bars refrigerated in an airtight container. If I leave the bars unfrosted, I can store them at room temperature for a shorter period, provided they are tightly covered.

Conclusion

Frosted Banana Bars are one of my favorite ways to use ripe bananas when I want something beyond traditional banana bread. The banana base is soft and moist, while the smooth cream cheese frosting adds a rich, creamy finish to every bite.

Frosted Banana Bars Recipe

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These Frosted Banana Bars are soft, moist, and full of sweet banana flavor with a rich, tangy cream cheese frosting. They are an easy crowd-pleasing dessert for parties, potlucks, or using up ripe bananas.

• Author: Laura
• Prep Time: 20 minutes
• Cook Time: 22–27 minutes
• Total Time: About 1 hour 30 minutes
• Yield: 24 bars
• Category: Dessert
• Method: Bake
• Cuisine: American
• Diet: Vegetarian

Ingredients

• 1/2 cup unsalted butter, softened
• 1 1/2 cups granulated sugar
• 2 large eggs
• 1 cup sour cream
• 1 teaspoon vanilla extract
• 1 1/2 cups mashed ripe bananas
• 2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 teaspoon ground cinnamon, optional
• 8 ounces cream cheese, softened
• 1/2 cup unsalted butter, softened
• 3 cups powdered sugar
• 1 teaspoon vanilla extract
• Pinch of salt

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Instructions

1. Preheat the oven to 350°F (175°C) and lightly grease a 10×15-inch baking pan or line it with parchment paper.
2. Beat the softened butter and granulated sugar together in a large mixing bowl until light and creamy.
3. Add the eggs one at a time, mixing well after each addition.
4. Mix in the sour cream, vanilla extract, and mashed bananas until evenly combined.
5. In a separate bowl, whisk together the flour, baking soda, salt, and optional cinnamon.
6. Gradually add the dry ingredients to the banana mixture and stir just until combined, taking care not to overmix.
7. Spread the batter evenly in the prepared pan, making sure it reaches the corners.
8. Bake for 22 to 27 minutes, or until lightly golden and a toothpick inserted near the center comes out clean or with a few moist crumbs.
9. Remove the pan from the oven and let the banana bars cool completely.
10. For the frosting, beat the softened cream cheese and butter together until smooth and creamy.
11. Gradually beat in the powdered sugar, then add the vanilla extract and a pinch of salt. Continue beating until light and smooth.
12. Spread the cream cheese frosting evenly over the completely cooled banana bars.
13. Cut into 24 squares or rectangles and serve.

Notes

• Use very ripe bananas with plenty of brown spots for the sweetest flavor and moistest texture.
• Avoid overmixing the batter after adding the flour and do not overbake the bars.
• For Banana Walnut Bars, fold about 3/4 cup chopped walnuts or pecans into the batter.
• For Chocolate Chip Banana Bars, fold semisweet or milk chocolate chips into the batter before baking.
• For extra warmth, add cinnamon and a small pinch of nutmeg to the dry ingredients.
• Make sure the bars are completely cool before frosting so the cream cheese frosting does not melt.
• Store frosted bars in an airtight container in the refrigerator for up to 5 days.
• For longer storage, freeze the bars for up to 2 months and thaw overnight in the refrigerator.

Nutrition

• Serving Size: 1 bar
• Calories: 260 kcal
• Sugar: 28 g
• Sodium: 150 mg
• Fat: 12 g
• Saturated Fat: 7 g
• Unsaturated Fat: 4 g
• Trans Fat: 0 g
• Carbohydrates: 37 g
• Fiber: 1 g
• Protein: 3 g
• Cholesterol: 50 mg