Classic Frosted Sugar Cookies Recipe

Ingredients

• 2 ¾ cups all-purpose flour
• 1 teaspoon baking powder
• ½ teaspoon salt
• 1 cup unsalted butter, softened
• 1 ½ cups granulated sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 4 cups powdered sugar
• 2 tablespoons unsalted butter, softened
• 3 tablespoons milk
• Food coloring (optional)