Steak Teriyaki

Beef

3 pounds round or sirloin steaks
(1" thick)
1/2 cup soy sauce
3 tablespoons brown sugar; packed
1 teaspoon ginger
1/2 teaspoon dry mustard
1/4 teaspoon garlic powder
1/2 teaspoon black pepper; coarse ground
2 tablespoons lemon juice
1 each 12 oz can flat beer
2 tablespoons salad oil

Combine marinade ingredients and pour over steak. Cover and refrigerate 12-24 hours. Grill 3-4 inches from hot coals, basting frequently with marinade, for about 20 minutes (10 minutes each side) or to desired doneness. Slice steak thinly on the diagonal before serving.