Created by TeresaS on January 5, 2021
Step 1: Heat oven to 275°F. In bowl, create spice rub by combining sugar, paprika, chili powder, garlic powder, 1 tablespoon salt, and 2 teaspoon pepper. Mix well and set aside.
Step 2: Place ribs on rimmed baking sheet. Spread with mustard, then sprinkle with 3/4 cup spice rub. Pour apple juice onto sheet, cover tightly with foil, and bake until meat is tender and easily pulls away from bone, 2 1/2 to 3 hours.
Step 3: Meanwhile, in medium bowl, whisk together ketchup, vinegar, Worcestershire sauce, and remaining 1/2 cup spice rub. Transfer 1/2 cup mixture to bowl.
Step 4: Ten minutes before ribs are done, heat grill to medium-high. Grill ribs, basting with ketchup mixture and turning occasionally, until they begin to char, 5 to 6 minutes. Cut into pieces and serve with reserved sauce for dipping.