2 large chocolate-chip cookies per person (any kind you like: store-bought; baked from refrigerated dough; homemade...here's my favorite recipe if you want to go that route)
1 large "s'more" marshmallow (these are the special rectangular-shaped version specifically designed for s'mores, and yes, they are better than normal marshmallows) OR 2 large round marshmallows per person
Preheat your oven's broiler. Position an oven rack so it's in the second position from the top. Put a piece of foil or parchment paper on a cookie sheet and coat it with nonstick cooking spray. Put your marshmallow(s) on the coated foil or parchment paper. Have your cookies ready, with one upside down on a plate and the other off to the side.
When your broiler is heated, slide the cookie sheet with the marshmallow(s) onto the top rack and broil for a few to several seconds, until your marshmallow(s) is/are nicely golden. DO NOT walk away and do anything else while they're toasting, or you will end up with charcoal and possibly some sort of announcement from your smoke detector.
Carefully remove the cookie sheet from the oven and set it on the stovetop or a cooling rack. Give a spatula a quick spritz of nonstick cooking spray and use it to slide the marshmallow(s) onto the waiting upside-down chocolate chip cookie. Top with the second cookie, pressing down slightly to marry said cookie with its marshmallowy counterpart. Eat immediately. Serves 1 to 100, depending on how many cookies and marshmallows you have and how much time you've got and how many people are crammed into your kitchen.
Recipe courtesy of www.guiltychocoholicmama.blogspot.com