Print Recipe

Grilled Marinated Flank Steak or London Broil

Based on a recipe from an old Weber Grill Cookbook.
Prep Time15 mins
Cook Time20 mins
Marinating Time12 hrs
Course: <= 30 Min Prep, Grill, Main Course - Beef
Servings: 4 servings
Author: Catherine Christiano


  • 1/4 cup vegetable oil
  • 1/3 cup soy sauce low sodium
  • 1/4 cup red wine vinegar
  • 2 tablespoons lemon juice
  • 1 teaspoon dry mustard
  • 1 clove garlic pressed
  • 1/4 teaspoon black pepper
  • 1 1/4 pounds flank steak or London broil


  • Combine all ingredients, except meat, in a non-metal baking dish. Place meat in marinade turning to coat completely. Cover and marinate in refrigerator 4 - 12 hours (longer is better).
  • Grill one minute on each side to sear, then 3 to 4 minutes on each side.
  • Cut meat diagonally across grain into thin slices and serve.


Goes well with steamed or grilled vegetables, grilled portobello mushrooms, Herbed New Potato Salad.