Lemon-Marinated London Broil

Step 1
Prick the London broil on both sides several times with a fork; place into a resealable plastic bag. Whisk together the lemon zest, lemon juice, olive oil, sugar, green onions, Worcestershire sauce, Dijon mustard, salt, and black pepper in a bowl. Pour into the bag with the meat, coat with the marinade, squeeze out excess air, and seal. Marinate in the refrigerator at least 3 to 4 hours, but overnight is best.

Step 2
Preheat an outdoor grill for medium-high heat, and lightly oil the grate.

Step 3
Remove the beef from the marinade, and shake off excess. Discard the remaining marinade.

Step 4
Cook the beef until it is beginning to firm, and is hot and slightly pink in the center, about 17 to 20 minutes per side. An instant-read thermometer inserted into the center should read 140 degrees F (60 degrees C). Cover the meat with two layers of aluminum foil, and allow to rest in a warm area for 10 minutes before slicing thinly across the grain.