I alsways use this recipe when making royal icing for cake decorations.
Royal Icing II
1 pound powdered sugar
5 tablespoons meringue powder
2 tablespoons water
food coloring (optional)
1. Combine powdered sugar and meringue powder in a mixing bowl and beat on low speed.
2. Add water drop by drop.
The amount depends on the temperature and humidity in your kitchen. Add the water slowly and do not let the mixture get runny – you will probably not use all of it. 3. Beat for 7 – 10 minutes or until the mixture holds a trail on the surface for five seconds when you raise the mixer from the bowl.
If you like, you can tint the icing with a few drops of food coloring.