Banana Split Surprise Cake

unsalted butter, room temperature1 ½ cup sugar½ confectioner sugar4 large eggs2 1/2 cups cake flour1 teaspoon baking soda¾ teaspoon baking powder½ teaspoon salt1 cup mashed bananas½ cup sour cream2 teaspoon vanilla extract

large egg whites11/2 cup sugar4 sticks unsalted butter, diced and softened1/2 cup mashed bananas1/4 teaspoon salt1 1/2 tablespoon vanillas extract5-8 drops of yellow food coloring (this amount may vary depending on the brand used)

Philadelphia Cream Cheese, softened½ cup confectioner sugar¼ cup  granulated sugar2 eggs3/4 cup of mashed bananas2 teaspoon vanilla extract3 tablespoons non-pareils