Mega Brownie Frozen Dessert Sandwiches

Preheat oven to 350°F (180° C). Lightly spray (40 x 25-cm) jelly-roll pan with no-stick cooking spray, then line with parchment paper or aluminum foil and spray paper; set aside. Prepare brownie mix according to package directions; pour into prepared pan. Bake 17 minutes or until center is firm to the touch. On wire rack, cool completely. Run metal spatula around edges of brownie to loosen and invert onto cutting board; remove parchment paper. Cut brownie crosswise into 8 slices, then lengthwise into 4 slices. Freeze 30 minutes. Cut carton from Breyers® Classic Vanilla with scissors and arrange on its side. Cut lengthwise into 4 slices, then cut each slice into 8 slices. Sandwich Breyers® Classic Vanilla slice between 2 brownies. Roll edges in sprinkles and freeze until ready to serve.