1Make cookie dough as directed on package. Bake at 350° F for 10-12 minutes. Cut marshmallows in half using serrated knife. Immediately top each hot cookie with marshmallow cut-side down, pressing down firmly. Cool; place cookies on cooling racks.
2Microwave fudge topping on High 30 seconds or until warm. Spoon topping over each marshmallow-topped cookie. Top with candy sprinkles.