Korean Grilled Beef

Marinade
1/4 cup Sesame seeds, toasted in a 350 degree oven for 15 minutes and then crushed with a mortar and pestle.
1 large garlic clove peeled and minced
2 medium scallions minced
1/3 cup of all purpose soy sauce
3 tablespoons vegetable oil
1 tablespoon sugar
1/8 teaspoon freshly ground black pepper

Combine all ingredients and place in a one gallon zip-lock bag.

1 pound sirloin steak trimmed about 1 inch thick sliced as thin as possible.

Place sliced beef in bag with marinade, place bag in another zip-lock bag and marinate at room temperature for 1 hour. Remove strips from marinade and thread on skewers. Grill over hot coals about 2 and 1/2 minutes on a side.  Serve on or off the skewers.