1 box (15.25 oz) Betty Crocker Spice Cake Mix
1 cup water
1/2 cup Canola oil
2 medium bananas, mashed
2 medium bananas, sliced
5 T unsalted butter
3/4 cup light brown sugar, packed
1 tsp pure vanilla extract
Preheat oven to 350 degrees. Spray a non-stick bundt pan with non-stick cooking spray.
In a large stand mixer, add the cake mix, water, oil, and eggs. Beat on medium speed for 3 minutes. Add the mashed bananas and beat to incorporate.
In a small sauce pan, melt the butter and add the brown sugar. Turn heat to low and let simmer for 3 minutes, stirring frequently. Turn off the heat and stir in the vanilla extract.
Place the sliced bananas in the bottom of the bundt pan. Pour the brown sugar sauce over the bananas, and then pour in the cake batter.
Bake for 38-42 minutes, or until a cake tester comes out clean. Immediately invert onto serving platter. Enjoy!