1 box cake mix
3 ripe bananas
1/2 cup vegetable oil or melted butter
3 large eggs
1 teaspoon vanilla extract
1/2 cup milk or buttermilk
Preheat the oven to 175°C or 350°F and grease a 9x13-inch baking pan.
Combine cake mix, mashed bananas, melted butter, vanilla extract and buttermilk in a bowl.
Pour the batter into a greased baking pan.
Bake for 25-30 minutes and check with a toothpick. Take out once done.
Allow the cake to cool, cut into pieces and serve with whipped cream.