For Crust • Pepperidge Farms Bordeaux cookies, crushed, about 1 1/2 bags • butter, salted or unsalted • For Hazelnut Swirl Cheesecake • cream cheese, at room temperature • large eggs at room temperature • granulated sugar • salt • sour cream • vanilla extract • ouncebag of Lindor Hazelnut truffled, 12 truffles