Easy 3-Ingredients Shortbread Cookies Author: TastyShare Prep time: 5 mins Cook time: 18 mins Total time: 23 mins Serves: 12 Ingredients 1 cup (2 sticks) butter, softened 1/2 cup powdered sugar 2 cups all-purpose flour Instructions Preheat oven to 350 degrees F. Prepare two large baking sheets lined with parchment paper or a Silpat. In