One 13.29 ounce package of Nabisco Gluten-free Oreos (not double-stuf) contains 3 rows of 11 cookies, which is 33 cookies per package. Use 18 cookies for the crust and the rest for the filling and topping the cake. You will need to dip into a second package of Oreos for the garnish. If you don't want to buy a second package, don't put any Oreo pieces on top of the cheesecake before baking and save those for the garnish.