Flank Steak Marinade

This is the marinade that my (Ashley's) aunt uses for her AMAZING flank steak tacos:

1/2 c soy sauce
1 clove minced garlic
1 tsp ground ginger
2 tbs each brown sugar (firm packed), lemon juice, salad oil
1 tbs minced onion
1/4 tsp pepper

Combine all ingredients and marinade a 1.5 lb flank steak overnight. Cook over wood or charcoal for top flavour - serve w/ black beans, guacamole and cilantro - YUMMY!