Prepare your recipe of cheesecake batter.
Mix base cake and butter; press 13 oz of mixture onto bottoms of each (9-inch) springform pans.
Bake in 325ºF standard oven 8 min. Cool.
Combine cheesecake batter and OREO Pieces; pour evenly over crusts. Place in water bath, using separate water-filled pan for each cheesecake.
Bake 1 hour 35 min. to 1 hour 45 min. or until centers are almost set; cool completely. Refrigerate several hours or overnight.