The crucial substances for this recipe are: butter or oil in the level of four Tbs total, some sort of veggie from the next for taste: onion, garlic, mushroom, celery. It's also possible to utilize a slurry mixture of cornstarch and water to thicken the gravy as an alternative to http://how-to-make-gravy-with-fl48024.pages10.com/Detailed-Notes-on-how-to-make-homemade-gravy-with-flour-29741829