Mix together all ingredients. Chill dough. Roll into balls and dip the top half in sugar. For a flatter cookie, use the bottom of a cup to slightly tap down each cookie before baking. Bake at 350 degrees for 12 minutes. Don't overcook, you want them moist and chewy. Allow to cool. To add the hearts on top simply melt red and pink chocolate in the microwave. Using a Ziploc bag with a tiny hole cut out of one corner as a piping bag, draw a heart on the top of each cookie.