Heavy Tomato-Based Barbecue Sauce

If you find this to be too thin for your taste just simmer it a bit longer. It will thicken some as it cools.
　
½ gallon ketchup
2 ½ cups apple cider vinegar
1 ½ cups Worcestershire sauce
1 ½ cups water
2 cups sugar
4 cups dark brown sugar
¼ teaspoon salt
½ cup yellow mustard
1/3 cup vegetable oil
3 tablespoons chili powder
3 tablespoons paprika
2 tablespoons black pepper

Combine the ketchup, cider vinegar, Worcestershire and water. Bring to a simmer to assist in dissolving the sugars. Combine the remaining ingredients and add to the mixture. Simmer for 15 to 20 minutes over low heat. Let cool and hold for service at room temperature. Or, the sauce can be stored in an airtight container and refrigerated to use later.