You'll need:

1 (24-32 oz.) top sirloin
2 lg. garlic cloves, minced
1 thick slice ginger, minced
1 c. light soy sauce
1 c. mushroom soy sauce
2 tbsp. olive oil
1/2 tsp. sesame oil
1 lemon, juiced
1/3 c. sherry
Chili flakes, adjusted to personal preference

Mix the above ingredients and marinate the top sirloin in the mixture for 3-4 hours (turning over often). Grill over coals until desired doneness is achieved.

Serves 4.