Ideally use an electric mixer or Kitchen Aid with the whisk attachment.
- Beat 3 large egg whites and 1/2 tsp cream of tartar on medium high till foamy (about 1 minute)
- Reduce speed and add 1 LB confectioner sugar (about 4 cups) 1 cup at a time, stirring until incorporated
- Increase speed to high and beat until glossy peaks form (5-7 minutes)
- Pipe with a pastry bag
