Step 1

Beat all ingredients together until icing forms peaks. Beat for about 7-10 minutes at low speed with a heavy-duty mixer or 10-12 minutes at high speed with a hand-held mixer.

Step 2

At this point, check the consistency of your royal icing. If icing is too stiff, add more water, 1 teaspoon at a time, until desired consistency is achieved. If icing is too thin, add powdered sugar, a little at a time, until desired consistency is achieved.

Step 3

Let icing sit for 15 minutes to an hour to let air bubbles rise naturally. Alternately, tap the bowl on the table several times to force the air bubbles up. Gently stir the top surface to release the air.