
Keeping the dough on the parchment, use heart shaped cookie cutters to cut out heart shapes in the dough. Set the shapes onto clean parchment lined cookie sheets at least an inch apart from one another. Knead the leftover dough together and roll it out again into a sheet just shy of a 1/4 inch thick. If the dough is too soft, chill it again before cutting out additional cookie shapes. Repeat until all of the dough has been used up. You should have 20 to 25 cookies.
Allow the cookies to cool completely before decorating with royal icing, or eat as is!
If using homemade icing, add 1 to 2 drops of food coloring for every 1/2 cup of royal icing.
Using a sandwich baggie with a small hole cut off the the corner, or pastry bag with a #4 tip, pipe a heart in royal icing top of each cookie. Wait three minutes before topping the icing with your choice of sprinkles.
Allow the royal icing to dry for 4 to 8 hours before serving.