note; 1.The addition of ketchup in this slightly sweeter vinegar sauce distinguishes it from simpler Eastern North Carolina vinegar sauce. I like the added flavor and the pink color that the ketchup gives the sauce. To turn this sauce into an Eastern sauce, add 1 cup of water and eliminate the brown sugar and ketchup. 2.This sauce is used to make North Carolina Style Pulled Pork and North Carolina Coleslaw . You will need to double this recipe to sauce both the meat and the slaw.