Make yellow cake as directed on the box

Take cake out the oven, cool, set aside

Prepare jello as directed substituting 8oz of water with 8oz of soda

Poke holes in cooled cake and fill with jello and soda mixture

Refrigerate 2 hours or till completely chilled

Frosting: make vanilla pudding as directed, add two medium sliced bananas, mix

After cake is completely chilled , frost with pudding and banana mixture, Top with Cool Whip

Garnish with sliced bananas just before serving if desired...Enjoy!