If you like mustard -- this is a good sauce to try. It will give you a completely different perspective on barbecue.

Carolina Mustard Sauce

2 tablespoons vegetable oil
1/2 cup minced onions
1 cup prepared yellow mustard
1/2 cup fresh lemon juice
1/4 cup dark brown sugar, firmly packed
1/4 cup white vinegar
1 teaspoon celery seeds
1 teaspoon salt

1. Heat the oil in a medium-size nonreactive saucepan over medium heat. Add the onions and sauté until translucent, about 3 to 4 minutes. Add the rest of the ingredients, and blend them well. Bring the mixture to a boil, then reduce the heat and simmer for 15 to 20 minutes, stirring occasionally.
2. How to use it: Mustard based sauces hail from pork country--so pork is what I'd use this on first. Try it as a finishing sauce for pork shoulder, painted on about 30 minutes before the end of the cooking time. Or try it on a pulled pork sandwich. This sauce will keep for several weeks in an airtight container in the refrigerator.

Makes 2 cups.