Grilled Marinated Tri-Tip - cooking recipe

Ingredients

1 cup soy sauce (low-sodium will work well)
1/2 cup brown sugar
1/2 cup white sugar
3/4 cup onion, sliced
1/2 cup sake
1/2 cup mirin (or 1/2 cup sake and 1 teaspoon sugar)
1 tablespoon garlic, minced
1 tablespoon ginger, sliced
1/2 teaspoon pepper
1/2 teaspoon dry mustard
1 beef tri-tip steak, trimmed of excess fat (1 1/2 pounds)

Preparation

In a marinating dish or large zip lock bag pour in marinating ingredients (soy sauce - mustard), stir or shake bag until sugar is dissolved. Add beef, covering all sides. Chill at least 2 hours, but may be marinated up to one day, turning occassionally.
Drain beef, discarding marinade.
Prepare grill using a solid bed of coals - about medium heat.
Grill beef, turning every 5 minutes until done to desired doneness (about 30 minues for med rare).
Transfer to platter or cutting board and let rest 5 minutes before slicing beef into thin slanting slices, cutting across grain.