Say goodbye to plain chocolate chip cookies…… because the Ultimate Cookie Sandwich is here! This ooey, gooey delight is sure to satisfy your sweet tooth. The base, of course, is a chocolate chip cookie. Spread on the top of that is my new favorite baking ingredient….cookie butter! Top with Hershey’s chocolate and some marshmallows, and then broil for one minute or until the marshmallows are nice and toasty. Top with the other cookie and ta da! You have created the Ultimate Cookie Sandwich.