I prefer a mustard or a lexington style sauce myself. For something simple like a spiced vinegar sauce similar to what you posted, I just use
Suka Pinakurat brand Philippine spicy coconut vinegar that Benedic turned me on to.
Here's two good sauces that I have found:
Miss Piggy Mustard Sauce
1 cup Mustard
1/2 cup Sugar
1/2 cup Cider vinegar
1/4 cup Brown sugar, light
2 tablespoons Chili powder
1 teaspoon Pepper
1 teaspoon White pepper
1 teaspoon Cayenne pepper
1 tablespoon Hot sauce
1 teaspoon Soy sauce, dark
2 tablespoons Butter
Combine all ingredients except soy sauce and butter. Add the vinegar last. Add to your desired thickness.
Simmer for 10 minutes.
Remove from heat and add butter and soy sauce.
Lexington sauce
(I know, not a Carolina sauce)
1 c cider vinegar
1/4 c water
1/4 c ketchup
2 t Worcestershire sauce
1 T dark brown sugar
1/2 t cayenne pepper
1 t fresh ground black pepper
1 t salt
1/2 t chipotle pepper
Simmer 10 minutes.