Brownies:
2 eggs
3 bananas, mashed
1 1/2 cups sugar
1 cup sour cream
1/2 cup butter, softened
2 teaspoons vanilla extract
2 cups all-purpose flour
1 teaspoon baking soda
3/4 teaspoon salt
1/2 cup walnuts, chopped
Frosting:
1/2 cup butter
3 cups powdered sugar
1 1/2 teaspoons vanilla extract
3 tablespoons milk
Heat oven to 375°F. Grease a 13 x 9 inch pan. For the brownie, In a large bowl, beat together sugar, sour cream, butter, and eggs until creamy. Blend in bananas and vanilla extract. Add flour, baking soda, salt, and blend for 1 minute. Stir in walnuts. Spread batter evenly into pan. Bake 25 minutes or until golden brown. Cool slightly and frost with frosting. For frosting, Heat butter in a large saucepan over medium heat. Watch carefully when it reaches a medium brown color turn off heat, whisk in powdered sugar at a time, adding milk as it thickens, then add in vanilla. Pour over the warm banana bread brownies immediately, and smooth with a spatula, butter knife, or frosting spatula. Cool completely before cutting.
