Ingredients Buttercream Frosting Buttercream Frosting Tools Round Cake Decorating Tip 3 Round Cake Decorating Tip 3 12-Inch Disposable Cake Decorating and Pastry Bags, 100-Count 12-Inch Disposable Cake Decorating and Pastry Bags, 100-Count Instructions Click to mark complete - Hold bag at 90? angle and touch tip to surface. Squeeze at starting point so that icing sticks to surface. - Now, raise the tip slightly and continue to squeeze. The icing will flow out of the tip while you direct it along surface. - To end an outline, touch tip back to surface, stop squeezing and pull away. - To smooth icing: After outlining and filling in area with icing, pat smooth using finger dipped in cornstarch. Resources How to Pipe an Outline