Chinese Black Pepper Steak Recipe

1-1/2 pound beef fillet steak, in one piece
2 Onions -- sliced
1/2 teaspoon Sesame oil
2 tablespoons Dry sherry
2 teaspoons splenda
2 teaspoons fresh ginger -- grated
1 tablespoon soy sauce -- dark
2 tablespoons Whole black peppercorns -- crushed

Partly freeze steak. Cut into thin slices. Combine steak, onions, sesame oil, sherry, splenda, ginger and soya sauce in bowl. Cover, marinate several hours or refrigerate overnight. Stir peppercorns through steak mixture. Stir-fry steak and onions in a wok over high heat until steak is cooked to your liking.