Unique baking set creates beautiful cakes that you fill with ice cream, mousse, parfait, fruit, cream, gelatin or custard! Simply prepare your batter (boxed mix or your favorite scratch recipe), pour batter to "fill line" of one pan & place the insert on top and twist to lock in place. Pour remaining batter into base pan & bake. When the cakes have cooled, remove the insert pan and spoon your filling into the hollow cavity--then place the base cake on top. Flip onto your own serving tray to frost. Deluxe set includes a dome pan to make ball-shaped cakes. Non stick and dishwasher safe.