1 slab beef back ribs
1 tablespoon chili powder
1 teaspoon garlic powder
1/2 teaspoon cumin
1/4 teaspoon thyme
2 1/2 cups ketchup
3/4 cup cider vinegar
3/4 cup red wine vinegar
1/3 cup brown sugar
1/3 cup Worcestershire sauce
1/4 cup hot sauce
1/3 cup water
3 1/2 tablespoons chili powder
1 1/4 tablespoons cumin
1/2 teaspoon allspice
2 teaspoons garlic powder
3/4 tablespoon salt
2 tablespoons pepper