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4.27 from 23 votes

Yummy Sour Cream Banana Bars

These classic Yummy Sour Cream Banana Bars are super moist and decadent due to the ripe bananas, eggs and sour cream used to make them. They’re slightly tangy, delicious banana bars with a creamy layer of luscious cream cheese frosting on top to make everyone happy!
Author: Kim Lange


Sour Cream Banana Bars:

  • 2 cups all-purpose flour
  • 1 tsp baking soda
  • 1/4 tsp salt
  • 1/2 cup unsalted butter softened
  • 1 1/2 cups granulated sugar
  • 2 eggs, large
  • 1 cup sour cream
  • 1 tsp vanilla extract
  • 2-3 medium ripe bananas mashed, depending on your banana taste

Cream Cheese Frosting:

  • 1/2 cup butter at room temperature
  • 1 8-ounce package cream cheese, at room temperature
  • 2 1/4 cups powdered sugar
  • 1 tsp vanilla extract


Sour Cream Banana Bars

  • Preheat the oven to 350ºF. Spray a 9×13-inch baking pan with non-stick spray or parchment paper.
  • In a medium bowl, whisk together the flour, baking soda and salt, set aside.
  • Using mixer, in another bowl, cream together butter and sugar. Add in eggs, one at a time, mixing in between adding eggs. Beat in the sour cream, then the vanilla extract until incorporated, set aside.
  • Add dry ingredients to the wet ingredients, then stir in the mashed bananas. Transfer the batter to the prepared baking pan.
  • Bake until a tester inserted in the center comes out clean, 25-30 minutes. Cool
  • the cake completely before frosting.

Cream Cheese Frosting:

  • Using mixer, cream the butter and the cream sugar together in a bowl. Slowly add the powdered sugar and mix until completely smooth. Frost the cake with the frosting.


2 bananas were used in this recipe, but you can use up to 3 if you want, just remember they will be more dense, but still yummy!! :)