Adjust an oven rack to the lower-middle position and heat the oven to 325 degrees. Line the bottom of an 8-inch springform pan with parchment paper or waxed paper and grease the sides of the pan. (Be sure to grease the sides really well!) Wrap the outside of the pan with 2 sheets of heavy-duty aluminum foil and set it in a large roasting pan, or any pan that's larger than the springform. Bring a kettle or pot of water to boil.