Preheat the oven to 350 degrees.

Greased a bundt pan well.

Place a single layer of pineapple slices into the bottom of a bundt pan.

Mix together an angel food cake mix and a can of crushed pineapples until just combined.

Pour the batter into the bundt pan and bake 35-40 minutes until cooked through.

Let the cake cool, turn it over and out onto a plate or serving tray.