Make layered cake. Prepare batter following recipe directions. Bake and cool cakes. Prepare buttercream icing following recipe directions. Tint portion red. Reserve remaining white. Torte, stack and fill for a 4-layer, 4 in. high cake.
Decorate cake. Use spatula and white icing to ice cake smooth. Use plastic ruler and toothpick to mark four strips, each approximately 7/8 in. high with 1/4 in. space between each strip.
Use tip 2, cut disposable decorating bag and red icing to pipe Cornelli lace in space marked for each cake layer.