Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      pounds        top round steak -- boneless about 1"
                        -- thick
     1/4  cup           lime juice
   2      tablespoons   vegetable oil
   2      tablespoons   tequila
     1/2  teaspoon      salt
     1/2  teaspoon      cumin
     1/2  teaspoon      cayenne pepper
   2                    garlic cloves -- fine chopped
   1      cup           salsa
     1/2  cup           sour cream

Preparation:

Pierce beef with fork several times on both sides. Mix lime juice, oil, tequila, salt, cumin, red pepper and garlic in shallow glass or plastic dish. Place beef in dish; turn to coat with marinade. Cover and refrigerate at least 6 hours, turning beef occasionally. Remove beef from marinade; reserve marinade. Cover and grill beef 4-5" from medium coals, 20-25 minutes for medium, brushing occasionally with the marinade and turning once. Cut beef across grain into thin slices. Serve with salsa and sour cream.