To make heart shapes out of your crinkle cookies, take your cookie cutter, dip it in powdered sugar, then gently press into each cooled cookie. Make sure you dip the cutter back into the sugar each time. This will keep the cookie cutter from becoming sticky. You will have scraps of cookies left over. Don't throw them away! Use them to make red velvet truffles or crumble them up to use as a colorful topping for ice cream.