set in the center.
6. remove the brownies from the oven and cool them on a rack for 20 minutes before turning them out of the pan. loosen the edges and use a spatula or turner to loosen the bottom as much as possible. then flip the pan over onto another sheet of parchment or wax paper. peel the parchment off the bottom of the brownies and let them cool completely.
7. use a 2″ heart cutter to cut 3 dozen hearts out of the brownies (or use a smaller or larger cutter to cut more or fewer hearts.) place the hearts on a rack set over a piece of parchment or 