Roll out prepared cookie dough and cut out heart shapes then add to lined baking sheet. Bake as directed then cool for 30-minutes before assembling.
Prepare royal icing and sprinkles then begin assembling cookies. Spread icing around edges of a cookie, then place a cut out cookie on top.
Add sprinkles inside the center of the heart to create a cute candy box treat.
You can also lay a whole cookie on bottom, a cut out cookie in the middle, fill with sprinkles, and place a whole cookie on top for a sandwich cookie surprise!