Preheat the oven to 350 degrees F.
Spray bundt pan generously with non stick spray
Melt the butter and evenly pour into the bottom of the pan. Sprinkle with the brown sugar.
Cut the pineapple rings in half and alternate with the maraschino cherries around the bundt pan
Stir the cake mix and pudding mix together. Drain the pineapple juice into a measuring cup and add enough milk to make 1 Cup of liquid. Add this with the eggs and the amount of oil called for in the recipe to the cake mixture; following the instructions on the box.
Pour the batter over the fruit and bake as instructed for a bundt cake. The cake is done when an inserted knife comes out clean.
Cool for 10 minutes in the pan. Invert the cake onto a serving plate. Serve warm or at room temperature.
