- n the bowl of an electric mixer, fitted with the paddle attachment, add the sugar and meringue powder. Turn the mixer on low and add the water. Mix until the icing holds a ribbon-like trail on the surface when you lift the paddle above the icing. Note: Getting the right consistency is tricky, if the icing is too thick, add a little more water. If it is too thin, add some additional confectioners’ sugar. Add a small amount of gel food coloring to tint frosting to desired color(s) and decorate your holiday cookies as desired.