Hook’s Cheese Company (in Wisconsin, of course) has had the patience to age a 15-year-old cheddar. They started in 1994 with 5,200 pounds of cheddar that they sold chunks of at 10 and 12 years. 1,200 pounds were kept for the 15 year mark as they found the flavor to be developing well. Limited quantities are still available — at the steep price of $50 per pound. But another batch is not far behind and will be ready in March 2010.