@Foodpickle No cornstarch for gravy. thicken with flour? Mix with water first?
If you thicken with flour, yes mix with water or broth first before whisking this mixture into the pan drippings. Personally I say no thickener -- add wine, sherry or brandy to the pan drippings, to scrape them up. Then add some herbs and broth and reduce until concentrated. Swirl in a tablespoon or two of butter if feeling decadent.
Mix a couple Tbsp of fat drippings with a couple Tbsp flour in a pan and cook to loose the raw flour taste. Then add any turkey juices mixed with chicken stock and bring to a simmer. Simmer till thickened. You can further thicken using flour mashed with butter and add a bit at a time. Some people do just add the flour mixed in with water, but it tastes a little raw.
Agree -- nutcakes your method is better than what I suggested.