1/4 c. soy sauce
2 tbsp. vinegar
1/2 c. water
1/4 c. brown sugar
1/2 tsp. crazy salt
1 beef bouillon cube dissolved in 1/4 c. hot water

Pierce beef, put in container deep enough to cover meat with sauce. Refrigerate 4-6 hours or overnight. Take beef out 1 hour before cooking. Cook on grill until medium rare. Slice thin. Sauce may be heated and served over or on the side.