Tasty and versatile, learning how to pipe with buttercream can turn plain cakes and cupcakes into works of art. The easiest way to make perfect two-toned buttercream swirls is to add two colors to two ...

1. For buttercream icing, beat butter until light and fluffy. Gradually beat in icing sugar in stages. Add a few drops of vanilla extract and a splash of milk, and whisk until smooth. Add food ...