This is that one cake I can say I ate a lot and baked a lot growing up, of course back in the day the batter came from a box. In my opinion store box cake mix is a little too light for the heavy topping you get when flipping this cake over. The recipe calls for quite a bit of butter but hey knowing that is has "that" much butter is better than not even knowing what's in your store bought cake.
Nonstick cooking spray
3 cups cake flour, plus more for pan
1 cup butter, softened, plus 1/2 cup, melted
2 1/4 cups sugar
5 large eggs
1 teaspoon vanilla extract
2 teaspoons baking powder
1/4 teaspoon salt
1 1/4 cups whole buttermilk
1 1/2 cups firmly packed brown sugar
2 (20-ounce) cans pineapple slices in juice, drained well (reserve 2 tablespoons juice for frosting)
1 (10-ounce) jar maraschino cherries, drained well
1/2 cup sweetened flaked coconut
Preheat the oven to 350 degrees F. Spray 2 (9-inch) round cake pans with nonstick cooking spray and coat with flour.
In a large bowl, beat 1 cup butter at medium speed with an electric mixer until creamy. Gradually add the sugar, beating until fluffy. Add the eggs, 1 at a time, beating well after each addition. Stir in the vanilla and set aside.
In a small bowl, add the 3 cups of flour, baking powder, and salt. Stir to combine. Add the flour mixture into the egg mixture alternately with the buttermilk, beginning and ending with the flour mixture.
Divide the brown sugar evenly into each pan. Pour the melted butter equally over the brown sugar. Arrange the pineapple slices and cherries over the brown sugar, sprinkle with coconut. Reserve remaining pineapple slices and cherries for another use.
Pour equal amounts of batter over the fruit and bake until a wooden pick inserted in center comes out clean, about 40 to 45 minutes. Let the cakes cool in the pans for 10 minutes. Invert the cakes onto wire racks to cool completely.