Slow Cooker Barbequed Beef Ribs

1 cup water

1 cup ketchup

1 (6 ounce) can tomato paste

¾ cup brown sugar

½ cup vinegar

2 tablespoons prepared mustard

1 tablespoon salt

2 pounds beef back ribs

Mix water, ketchup, tomato paste, brown sugar, vinegar, mustard, and salt in a slow cooker, stirring to dissolve brown sugar and salt.

Place short ribs into the sauce and stir to coat. Set cooker on Low, cover, and cook for 8 hours.