Original version from Barbara Chau, Livermore, CA.   443-4522

SOY BEEF
 
      1 lb. flank stnk, sliced about 1/8" thick, or slightly thicker
      1/8 tsp baking soda
      1 tsp cornstarch 
      1 tsp light soy sauce
      3 tbsp ocoking oil (divided)
      1 tbsp water
      1 thap dark soy sauce
      2 tbsp + 1/8 tsp sugar

      1   Dissolve baking soda in the light aoy asuce.
	  Add cornstarch, 1 tbsp cooking oil, 1/8 tsp sugar, and water.
      2.  Marinate beef in the above sauce for at least 4 hours ( or overnight )
      3.  Heat 2 tbsp oil, pan fry beef until it changes color.
	  Add 2 tbsp  sugar and dark soy sauce.  Mix well and serve hot.