Directions
1.
Prepare the cake batter as directed on the box. Mash the two ripe bananas, and add those to the cake mix. Finally, mix in the chopped walnuts. Grease a 9â³x9â³ square or a 9â³ round microwave-safe cake dish. Pour the batter evenly into the pan. Microwave on high for 9 to 13 minutes, until cake is fully cooked (a toothpick will come out clean). Frost if desired (recommend cream cheese frosting).