Melt the butter in a sauce pot over medium low heat.
Whisk in the flour and allow to cook, while whisking, until flour turns a golden brown, about 2-3 minutes.
Pour in ½ cup of the juices/broth and whisk until it forms a paste.
Add the remaining liquid ½ cup increments at a time, whisking constantly until the gravy is smooth.
Allow to simmer over medium heat whisking constantly until thickened, about 5-7 minutes.
Take off heat, stir in Worcestershire sauce and season with pepper and salt if needed.