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London Broil

If you've got flank steak, dried rosemary and mesquite smoke powder, you're most of the way to this beef: about 60 minutes of cooking across 6 steps. Scroll down for the ingredient checklist, a serving scaler and unit converter, and the method broken into 6 steps.

60 minServes 4Easy5 of 8 likely on hand
London Broil

You'll mainly reach for grill / broiler and pan. At easy difficulty across 6 steps, it's a good one for a busy evening.

What you'll need

Servings4

Shopping list (3)

Pantry staples (you likely have these)

Diet: contains meat, based on every ingredient listed below.

Contains: Mustard

Allergen labels are informational and may not cover cross-contact; verify every package and consult a qualified professional for medical dietary needs. Diet labels are derived from the ingredient list on this page β€” how we verify diet and allergen labels.

Food-safety and allergen information is general, not medical advice. Follow current guidance from your local food-safety authority, verify product labels, and seek qualified advice for allergies or health conditions.

How to make it

  1. Pat the flank steak dry, then whisk together the dijon mustard, olive oil, salt, freshly-ground black pepper, cayenne pepper, crushed dried rosemary and mesquite smoke powder into a paste.
  2. Rub the paste evenly over both sides of the steak, then let it marinate at room temperature for 30 minutes, or cover and refrigerate for up to 8 hours and return to room temperature before cooking.
  3. Preheat a grill or heavy cast-iron pan over high heat until very hot, which is essential for a good sear on this lean cut.
  4. Sear the steak for about 4 to 5 minutes per side, turning once, until a deep crust forms and an instant-read thermometer reads 54 to 57 C for medium-rare.
  5. Transfer the steak to a board and tent loosely with foil, letting it rest for at least 8 to 10 minutes so the juices redistribute.
  6. Identify the direction of the muscle grain, then slice the steak very thinly against the grain on a slight angle to keep each piece tender, and serve.

You'll use: Grill / broiler Β· Pan Β· Whisk

Tips & common questions

How long does London Broil take to make?

About 60 minutes from start to finish β€” an estimate based on the 6 steps and 8 ingredients. Times vary with your kitchen and how much prep you do ahead.

Can I scale this recipe up or down?

Yes β€” use the servings control above the ingredients and every quantity rescales automatically (fractions included). Cooking times stay roughly the same; very large batches may need a little longer.

How should I store leftovers?

Cool leftovers quickly, refrigerate in an airtight container, and eat within 3 days. Reheat until piping hot throughout.

Adapted recipe β€” rewritten in our own wording from an open-licensed community cookbook, not yet independently kitchen-tested by Consomee. How we source, test & correct recipes.

London Broil is adapted by Consomee from the Wikibooks Cookbook, rewritten in our own wording and used under CC BY-SA 4.0. Photo: London broil.jpg by Jeremy Keith (adactio@Flickr), CC BY 2.0 via Wikimedia Commons. We add the serving scaler, ingredient tools, timing and structure β€” how we source recipes.