Step 3
Unmold 1 cake layer onto plate; spread with 1/2 cup
Cool Whip. Unmold second cake layer; carefully place on top of first layer. Frost top and side of cake with 2 cups of the remaining
Cool Whip. Tint remaining
Cool Whip with food colouring; spread on top of cake to resemble ice rink. Outline outside edge of rink with blue decorating gel. Refrigerate 1 hour.