Usually chopped fruits -- such as apples , pineapples , or cherries -- and a butter and sugar topping are placed on the bottom of the pan before the batter is poured in , so that they form a decorative topping once the cake is inverted .
Usually , chopped fruits -- such as apples , pineapples or cherries -- and a topping of butter and sugar are placed on the bottom of the pan before the batter is poured in .