Slice beef into 1/2 inch strips.
Arrange in shallow casserole.
Combine soy sauce, wine, garlic and ginger.
Pour over meat, cover and refrigerate.
Broil beef 1-1/2 minutes on each side.
Pour marinade into saucepan.
Add cornstarch and cook over medium heat, until sauce thickens.
Remove from heat, stir in sugar substitute.