Piquant Grilled Steaks

¼ C soy sauce
2 T oyster sauce
1 T hoisin sauce
1 T brown sugar
1 T dry sherry
1 clove garlic
1 t sesame oil
4 steaks
Combine marinade in bowl, add steaks and refrigerate covered overnight. Drain and cook on bbq uncovered. Brush with remaining marinade while cooking.