Banana Flip Cake

           6 eggs
           3/4 cup sugar
           2 teaspoons banana extract
           3/4 cup cake flour
           1 teaspoon baking powder
           1/2 teaspoon baking soda
           1/2 cup butter, softened
           1/2 cup shortening
           4 cups powdered sugar
           2-4 teaspoons milk
           1 teaspoon banana extract

           Preheat oven to 350 degrees. Prepare a 10x15 jelly roll pan,
           spray non stick spray, parchment paper, spray parchment
           paper.

           In a large mixing bowl beat eggs until blended. Add sugar 
           and extract and mix on high until fluffy about 6 minutes.
           Sift flour, powder and soda into egg mixture; fold to combine.
           Pour into prepare pan and bake for 10-12 minutes. Cool
           completely.

           In a large bowl whip the butter and shortening until combined.
           Add powdered sugar, mix well. Add milk and extract and whip until creamy.

          Cut cooled back in half. Put half of the cake in a 9x13 pan (it won't fill the pan)
          Top with whipped filling; place other half of the cake on top of the filling.