Preheat oven to 350°F Grease two 8 or 9-inch cake pans.
Beat brown sugar blend and oil in an electric mixer. Add eggs, one at a time, beating well after each addition. Add next 6 ingedients. Beat to combine. Fold in chocolate chips. Pour batter into prepared pans.
Bake in preheated oven for 30 minutes or until a toothpick inserted in center of cake comes out clean. Cool in pans for 10 minutes. Remove from pans and cool on a wire rack.
Place 1 layer of cake on serving platter. Place sliced banana on top. Place remaining cake on top. Sprinkle with icing sugar if desired.
TIPS: for a more decadent version, place 3/4 cup Chipits Semi-sweet chocolate chips in a heat proof bowl. Heat 1/4 cup Carnation fat-free evaporated milk in the microwave for 1 minute and pour over chocolate chips. Let sit 5 minutes, stir until mixture is combined. Drizzle half the mixture over the sliced bananas and bottom half of cake. Place remaining layer on top. Drizzle with remaining chocolate.