Barbecue Slow-Cooker Ribs

2 sides pork spareribs (about 6 pounds), separated

1 (28-ounce) can chunky tomato sauce

1/3 cup brown sugar

2 tablespoons red wine vinegar

1 tablespoon Worcestershire sauce

1 tablespoon reduced-sodium soy sauce

1 tablespoon chili powder

2 teaspoons ground cumin

1 teaspoon paprika

1 teaspoon garlic powder

1/2 teaspoon salt

1/4 teaspoon cayenne pepper

Directions:

Place the spareribs in the bottom of a slow cooker. In a medium bowl, whisk together the remaining ingredients. Pour the mixture over the spareribs. Cover and cook on LOW for 6 to 8 hours or on HIGH for 3 to 4 hours.