Spray a 8×8 springform pie pan with non-stick cooking spray. Remove Oreo crust from pan and re-form it in the bottom of your spring form pan, pressing it down with your hands. (You could skip this step and leave it in the original pie pan, but I enjoy the look of the taller pie).
Mix all ingredients together until smooth (I used my Kitchen Aid mixer, but you could do this by hand) and fold in Cool Whip until well blended.
Pour mixture over pie crust and drizzle with chocolate syrup. Chill for at least 4-6 hours, (or overnight). Let sit at room temperature for at least 15 minutes (to soften) and add topping of choice before serving.