Secrets for Successful Frosting
Always sift confectioners' sugar before using it for frosting. If there are any lumps in the sugar, there will be lumps in the frosting, which will clog decorating tips.
Frosting needs to be just the right consistency for spreading and decorating. If it's too thin, add a little confectioners' sugar. If it's too thick, add a little milk.
Tint white frosting with liquid, gel or paste food coloring. Liquid will give a pastel color; gel and paste give a deeper color. Add a little at a time, stir in and check the color. You can always add more, but it's hard to lighten the color. The color generally darkens as the frosting dries.