Scrape the batter into the prepared pan. Place the pan in a larger baking pan, and cover the top of the cake pan with heavy foil. Pour very warm water to the baking pan to come halfway up the sides of the cake pan, and bake for 1 hour and 15 minutes to 1 hour and 30 minutes, or until the cake has set. Bake until the cake appears to be set and your finger comes away clean after gently touching the center. Remove cake from water bath and let cook completely at least 2 hours. Once cool, refrigerate for 2 more hours.