Heat griddle to approx 350 F. Sprinkle shrimp with salt and flavor enhancer to taste. Oil griddle with soybean oil. Place shrimp on griddle and sauté about 3 min on each side.
Remove from griddle and dot with mixture of heavy cream and butter. Sprinkle with parsley and return to griddle. Cook 1-2 min longer. Squeeze juice from 1/2 lemon over shrimp. Remove from griddle. Serve with Benihana of Tokyo Ginger Sauce.