piece slab bacon, cut crosswise into 1/4-inch-thick pieces (freeze first; it is easier to cut slightly frozen bacon) • finely chopped onion • finely chopped celery • garlic cloves, minced • dry mustard • cayenne • hot smoked paprika • chicken stock or reduced-sodium chicken broth • tomato juice • long-grain white rice (preferably Carolina Gold) • chopped celery leaves • unsalted butter (Kerrygold, preferably) •