4 tbsp. (1/2 stick) unsalted butter
1 tbsp. water
1/2 cup confectioners’ sugar
In a small saucepan over medium heat, stir together the butter and water until the butter melts. Remove from the heat and let stand until cool, about 5 minutes.
Add the sugar to the butter mixture and whisk vigorously until smooth and thickened, about 1 minute. Use the icing within 5 minutes or it may become too thick to drizzle. If the icing does become too thick, rewarm it for 2 or 3 seconds over low heat, whisking constantly.
Makes a scant 1/2 cup.
Date: February 26, 2003