How-to Make Pan Gravy
Pour pan drippings into a heat-resistant measuring cup along with any browned bits scraped from roasting pan. Skim fat.
Reserve 1/4 cup of the fat and place in a saucepan. Whisk in flour until smooth.
Add enough broth or water to reserved pan drippings to equal 2 cups. Add all at once to flour mixture. Cook and stir over medium-high heat until mixture comes to a boil; cook and stir 2 minutes longer.