I used to always request this for Sunday dinners!
1/4 cup brown sugar
1/4 cup canola or vegetable oil
1/4 cup vinegar
1/2 cup soy sauce
1 Tbs. minced onion (I use 2 Tbs. dried)
3 shakes Lawry's seasoned salt
Flank steak, about 2 pounds
Mix together and marinate in refrigerator for 1-2 days. Discard marinade and grill steak on the barbecue. Slice steak into small strips (against the grain) and serve.
Tip: I usually buy a pack of 2 flank steaks at Costco. I double the marinade and mix it in 2 large Ziplock bags and put one steak in the fridge and one in the freezer for later. When I'm ready to use the frozen steak, I just thaw it in the fridge for a day and it's ready to grill!