This recipe was published by Gourmet magazine many years ago in the section where readers ask for the recipes from places they’ve been. Seattle-Tacoma airport has a little place called Dish D’Lish, and they sell these giant cookies to travelers who are looking for a treat.
Dough for these cookies is rolled into a thick log and refrigerated until very firm. It’s cut into ten thick slices and baked up with a gooey marshmallowy topping. When I baked my test cookies, the marshmallow topping browned up waaaaaayyyy too much, so I modified D’Lish’s recipe to include baking the cookie until it spreads a bit, and then adding the marshmallow topping. That works much better.
Toffee bits are melted within the giant chocolate goodness, and then you get gooey marshmallow in every bite too. The recipe makes 10 giant cookies, exactly. If you’re looking for more S’Mores treats, try these S’Mores Brownies or these Peanut Butter S’Mores Turnovers.