Iced Heart Cookies

Ingredients

• 2 cups unbleached all-purpose flour, plus more for dusting
• 1/2 tsp baking powder
• 1/2 tsp Kosher salt
• 1/2 cup (1 stick) unsalted butter, room temperature
• 1 cup sugar
• 1 large egg
• 1 tsp pure vanilla extract
• 2 & 3/4 cups confectioners’ sugar
• 1 large egg white, or 2 & 1/2 tbsp meringue powder
• Gel food color (optional)
• Sprinkles