Frosted Holiday Sugar Cookies - RecipesRun

Ingredients

• Food coloring, as needed
• Kosher salt
• 1/2 teaspoon Cream of tartar
• 3 Large egg whites
• 1 pound Confectioners’ sugar
• 1 Large egg
• 2 teaspoons Vanilla extract
• 1 1/2 cups Confectioners sugar
• 1 cup Unsalted butter
• 1/2 teaspoon Kosher salt
• 1 teaspoon Cream of tartar
• 1 teaspoon Baking soda
• 2 1/2 cups All-purpose flour, more for rolling