Beef Ribs with Orange and Smoked Paprika Sauce

1/4 cup Sherry wine vinegar

2 tablespoons frozen orange juice concentrate, thawed

2 tablespoons extra-virgin olive oil

1 tablespoon smoked paprikaplus more for sprinkling

1 

1/4 teaspoons ground cumin plus more for sprinkling

6 meaty beef ribs

Sometimes labeled Pimentón Dulce or Pimentón de La Vera Dulce, available at some supermarkets, at specialty foods stores, and from tienda.com.