Collect turkey drippings from the roasting pan
Skim off excess fat, leaving about 2 to 4 tablespoons in the pan
Place the pan on the stovetop over medium heat
Whisk in 2 to 4 tablespoons of flour for every 2 cups of drippings and fat
Cook the flour and fat mixture for 1 to 2 minutes, whisking constantly
Slowly pour in turkey stock or broth while whisking
Bring the gravy to a gentle simmer
Cook until thickened, whisking often
Add salt and black pepper to taste
Strain the gravy if desired
Serve warm