• Preheat oven to 375°F
• Grease a 15 x 10-inch jelly roll pan, line with parchment paper then grease and flour parchment paper.
• Sprinkle a clean kitchen towel (linen or cotton) lightly with powdered sugar and set aside.

Banana Sponge Cake

• In a small bowl, whisk together flour, baking powder, baking soda, cinnamon, and salt together.
• In the bowl of an electric mixer, beat egg whites until soft peaks form then add ½ cup sugar and continue until the whites form stiff peaks. Set aside.
• In another bowl, beat egg yolks and the remaining ½ cup sugar until thick.
• Continue to beat the egg yolks while adding mashed bananas and vanilla extract. Beat until well mixed.
• Stir dry ingredients into wet ingredients.
• Gently fold in egg whites.
• Spread the batter evenly into the prepared pan. Make sure to get it into each of the corners.
• Bake for 13 to 15 minutes or until the top of cake springs back when touched lightly or you can check to see if the cake is pulling away slightly from sides of pan..
• When cake is done, remove from oven, place powdered sugar-covered towel over the cake then place another cookie sheet on top (with flat bottom facing cake). Flip over carefully. Remove parchment paper.
• Spray a clean piece of parchment paper with nonstick spray and place over the warm cake, sprayed side down. Roll cake with towel and paper immediately starting from the narrow end. Place on a wire rack to cool completely.
• While the cake is cooling, make the filling.

Cream Cheese Filling

• Beat the softened cream cheese, butter, and vanilla extract until smooth,
• Add in the powdered sugar as you continue to beat. You may need slightly more powdered sugar to reach the right spreading consistency.

To finish:

• Carefully unwrap the cake. Remove the parchment paper from the top but leave it on the linen towel.
• Spread the cream cheese mixture smoothly and evenly over the cake.
• Roll the cake back up using the linen towel to help you lift the cake without breaking it and to keep the roll even.
• Place carefully on a long white serving plate. Let it chill in the refrigerator at least 2 hours or overnight.
• When ready to serve, let sit for 5-10 minutes, then sprinkle with powdered sugar. Drizzle with chocolate or caramel sauce and chopped nuts. Or opt for just whipped cream and banana slices. Cut into slices to serve.