Homemade Sugar Cookies with Royal Icing

Ingredients

• Cookie Dough
• 4 oz. (113 g) butter or margarine
• 3/4 cup (150 g) granulated sugar
• 1 large egg
• 1 teaspoon (5 ml) real vanilla extract
• 2 cups (320 g) all-purpose flour
• 1/2 teaspoon (2.5ml) baking powder
• Royal Icing Using Egg Whites
• White from 1 large egg at room temperature
• 2 cups (200 g) sifted powdered (confectioners) sugar
• 1/4 teaspoon (1.25 ml) creme of tartar
• Royal Icing Using Meringue Powder
• 1 1/2 tablespoons (22 ml) meringue powder
• 3 tablespoons (45 ml) water