SPREAD each of 9 graham squares with 1 tsp. peanut butter.
TOP each square with 1 Tbsp. chopped cookies, 1 tsp. fudge sauce and 3 to 4 miniature marshmallows. Top with remaining graham squares to form sandwiches.
PLACE 4 or 5 sandwiches on microwavable plate. Microwave on HIGH 10 to 15 seconds or until marshmallows begin to melt. Repeat with remaining sandwiches. Serve warm.
Great Substitute: Try using NUTTER BUTTER Peanut Sandwich Cookies instead of the OREOs.