Ingredients
1 pound confectioners' sugar, sifted, plus more if needed
5 tablespoons meringue powder
Scant 1/2 cup water, plus more if needed
Preparation
Combine all ingredients in a bowl, and beat with a mixer on low speed until smooth and opaque white, about 7 minutes. If icing is too thick, add more water, 1 teaspoon at a time, until icing has the consistency of glue; if too thin, beat icing 2 to 3 minutes more, or add more sugar, 1 tablespoon at a time.
