How To Decorate Shortbread Holiday Cut-Out Cookies With Royal Icing Recipe by Tasty

Ingredients

• 3 cups all purpose flour, plus more for dusting
• 2 teaspoons baking powder
• ½ teaspoon kosher salt
• 16 tablespoons unsalted butter, cubed and chilled
• 1 cup sugar
• 1 large egg
• 1 tablespoon vanilla extract
• 3 cups powdered sugar, sugar, sifted
• 2 tablespoons meringue powder
• ¼ teaspoon vanilla extract, or almond extract
• 4 tablespoons water
• green gel food coloring
• red gel food coloring
• 1 tablespoon brown gel food coloring
• blue gel food coloring
• yellow gel food coloring