Banana Cake Vanilla Bean Frosting

Banana Cake with Vanilla Bean Frosting

makes one 8x8-inch pan (double recipe for a 9x13 pan)

Cake:

2/3 cup sugar

1/2 cup sour cream

1 egg

2 tablespoons unsalted butter, softened

2 mashed super ripe bananas (about 3/4 cup)

1 teaspoon pure vanilla extract 

1 cup flour

1/4 teaspoon salt

1/2 teaspoon baking soda

Frosting:

2 tablespoons unsalted butter, softened

1/4 cup heavy cream

1/2 teaspoon vanilla bean paste* (see below)

1 1/4 cups confectioner's sugar

To make cake (easily mixed by hand):

Preheat the oven to 375F (see note below).  Cream together sugar, sour cream, egg, and 2 tablespoons softened butter.  Add mashed bananas and 1 teaspoon vanilla extract.  Add flour, salt, and baking soda; mix well.  Pour into greased 8x8 pan.  Bake at 375F for 20-25 minutes until a toothpick inserted in the center comes out clean.  Cool completely before frosting.

To make frosting:

Cream butter and confectioner's sugar together until smooth.  Slowly add the heavy cream; stir until smooth.  Stir in the vanilla bean paste until fully incorporated.  Spread on cooled cake. 

Note - Bake at 350F if using a glass pan.
Recipe doubles well to fit in a 9x13 pan.   

*Here's the general rule for substituting vanilla:
1 vanilla bean =
1 tablespoon vanilla powder =
1 tablespoon vanilla bean paste =
1 tablespoon pure vanilla extract

http://butteryum.blogspot.com.ar/2011/01/to-die-for-banana-cake-with-vanilla.html