Ropa Vieja

1/4 cup sherry vinegar

2 stalks celery, thinly sliced

1 large onion, chopped

1 large red bell pepper, seeded and chopped

3 cloves garlic, minced

1 tablespoon ground cumin

1 teaspoon salt

1/2 teaspoon freshly ground pepper

3 pounds flank steak, trimmed of fat, each steak cut into thirds

1/2 cup packed fresh cilantro leaves, chopped

1/2 cup chopped pickled jalapenos

10 corn tortillas, heated (see Tip) Tip: Wrap corn tortillas in foil and bake at

300 F until steaming, about 10 minutes.