Preheat oven to 350 degrees. Coat two 9-inch round cake pans with cooking spray and line bottoms with parchment paper.

Beat 1-1/2 sticks butter, and 1-2/3 c. sugar for 3 min.

Sift together flour, baking powder, baking soda and salt and set aside.

Add eggs, one at a time, to butter mixture and mix on low. Add flour mixture, in two parts, beating between each addition.

In separate bowl, mix the very ripe mashed bananas with sour cream and vanilla. Fold banana mixture into batter.

Pour into pans and bake 30-35 minutes until done. Cool on wire rack.

Sprinkle 1/4 c. sugar in large skillet. Cook over high heat until caramelized.

Remove from heat and stir in 3 T. butter until melted.

Return to medium heat. Add 3 sliced ripe bananas to skillet and cook 1-2 minutes and gently turn and cook 2 more minutes until lightly browned.

Place sliced bananas between cooled layers of cake and ice with your favorite cream cheese frosting.