This is a GREAT make ahead gravy, even a day ahead! There is an error in the directions tho. I watched the show and after he was done roasting the wing and vegetables, he added the flour and stock and then added the turkey wing back in before simmering for about 15 minutes more. This gravy warms up beautifully, and is an extreme crowd pleaser and EASY. From Tyler Florence at Food Network. Hope you enjoy!