Are you wondering if you can use London broil instead of flank steak in your recipe? The answer is yes, but there are a few things you should know before making the substitution.

What is London Broil?

London broil is a cut of beef that comes from the top round or flank area of the cow. It is typically a thicker cut of meat compared to flank steak and has less fat marbling. London broil is often used for grilling or broiling and can be served as a standalone dish or sliced for sandwiches.

What is Flank Steak?

Flank steak comes from the abdominal muscles of the cow and is a long, flat cut of beef. It has more fat marbling than London broil and is known for its rich flavor. Flank steak is commonly used in dishes such as fajitas, stir-fries, and carne asada.

Can I Substitute London Broil for Flank Steak?

Yes, you can use London broil instead of flank steak in many recipes. However, keep in mind that they are not exact substitutes, so there may be some differences in taste and texture.

One major difference between these cuts of meat is their thickness. London broil tends to be thicker than flank steak, so you may need to adjust your cooking time accordingly. Keep an eye on the internal temperature with a meat thermometer to ensure it reaches your desired level of doneness.

Another difference is the amount of fat marbling. Flank steak has more fat marbling than London broil, which can affect the flavor and tenderness of the meat. To compensate for this, you may want to marinate your London broil before cooking it to add some extra flavor and moisture.

Tips for Cooking with London Broil

  • Marinate your London broil for at least 4 hours before cooking to add flavor and tenderness.
  • Preheat your grill or broiler to high heat before adding the meat.
  • Cook the London broil for 5-6 minutes per side for medium-rare or until it reaches an internal temperature of 135°F.
  • Let the meat rest for at least 5 minutes before slicing it against the grain.

Recipes that Use London Broil

If you’re looking for inspiration on how to use London broil, here are some recipe ideas:

  • Grilled London Broil with Chimichurri Sauce
  • London Broil Stir-Fry with Vegetables
  • Balsamic Marinated London Broil Salad
  • Slow Cooker London Broil Tacos


In conclusion, you can use London broil instead of flank steak in many recipes, but keep in mind that they are not exact substitutes. Adjust your cooking time and consider marinating your meat beforehand to ensure it is flavorful and tender. With these tips, you can enjoy a delicious meal using London broil as a substitute for flank steak.