Strain the pan juices into a fat separator or bowl. Let stand for 10 minutes. Skim and discard the fat from the surface; set the juices aside.
Place the empty roasting pan over 2 burners over medium-high heat. Add the wine and cook, stirring and scraping to dissolve any bits stuck to the pan, for 2 minutes. Add the butter and melt. Sprinkle with the flour and cook, stirring constantly, until lightly golden, about 3 minutes. Still stirring, slowly add first the broth, then 1 cup of the reserved juices. Bring to a boil. Reduce heat and simmer gently until the gravy has thickened, 5 to 10 minutes. Remove from heat and season with the salt and pepper. Strain just before serving.
* Ingredients too variable for meaningful analysis of nutritional information