1/2 c. soy sauce
3 tbsp. brown sugar
1/4 c. vinegar
1 clove garlic
1/4 c. oil
1/2 c. ketchup
1/4 c. lemon juice
1 tsp. ginger, if desired
1/4 tsp. pepper

Mix well. Pour over meat and let set overnight. Grill as usual.