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Banana Sheet Cake

Banana Sheet Cake
  • Meal


  • Cusine



2 cups all purpose flour

1 teaspoon baking soda

1 teaspoon cinnamon

1/2 teaspoon salt

1/2 cup unsalted butter

1 cup white granulated sugar

1/2 cup brown sugar

2 eggs

The scraped insides of one vanilla bean, or 1 teaspoon of vanilla extract

1 cup of mashed ripe bananas

1/2 cup full fat sour cream

6 ounces cream cheese, room temp

4 Tbsp unsalted butter, room temp

2 cups powdered sugar

1 teaspoon vanilla extract

1 teaspoon lemon juice


Preheat the oven to 350 degrees F (175 degrees C) . In a medium bowl, whisk together the flour, baking soda, cinnamon, and salt. Beat together in a mixer the butter and sugars. Beat in the eggs one at a time. Mix in the vanilla and mashed bananas. Mix in half of the flour mixture, then the sour cream, then the other half of the flour mixture. Spread batter evenly in a greased 10x15 baking pan. Bake at 350 degrees F (175 degrees C) for 20 minutes, or until nicely browned and the surface bounces back when you press it with your finger. Cool completely before frosting. To make the frosting, mix all of the ingredients together with an electric mixer. If too stiff to spread, add a teaspoon or two of water. Spread the frosting evenly over the cake and slice to serve.