Go Back Email Link
+ servings
smoked flank steak sliced on a black cutting board
Print

Smoked and Reverse Seared Flank Steak

This smoked flank steak can be made on any grill, smoker, or pellet grill including a Traeger, Weber, Masterbuilt, or Pit Boss. The flank steak is first simply marinated overnight before getting smoked with low indirect heat and then reverse seared to finish.
Prep Time 20 minutes
Cook Time 1 hour
Resting Time 15 minutes
Total Time 1 hour 35 minutes
Servings 2
Calories 450kcal
Cost $15

Equipment

  • Large shallow glass baking dish
  • Propane, Electric, or Charcoal Smoker -OR-
  • a Pellet Grill, Charcoal grill, or Gas grill with a smoker box or pellet tube smoker.
  • Hickory, Pecan, or Mesquite Wood chips, chunks, or pellets
  • Instant Read Thermometer
  • Broiler or Hot Cast Iron Pan (optional)
  • Foil Lined Baking Sheet (optional)

Ingredients

  • 1.5-2 lb Flank Steak

Marinade

  • ½ Cup Olive Oil
  • Cup Worcestershire Sauce
  • Cup Soy Sauce
  • 2 tablespoon White Vinegar Can also use rice wine vinegar
  • 4-6 cloves Minced Fresh Garlic
  • 1 tablespoon Tomato Paste
  • ½ Cup Fresh green onions Chopped

Instructions

Trim and Remove Silverskin

  • Trim any excess fat from the edges of the flank steak.
    trimming fat off a flank steak
  • Remove the silverskin from the top and bottom broad sides of the flank steak.
    removing the silverskin from a flank steak

Marinate the Flank Steak

  • Whisk the marinade ingredients together in a small bowl and then transfer to a large sealable plastic bag.
    ingredients for marinating smoked flank steak
  • Place the flank steak in the bag and shake until all sides are covered in the marinade. You can also use a large covered glass baking dish if the flank steak is too big for a plastic bag.
  • Place in the refrigerator for at least 4-6 hours or even overnight.

Set up the Grill or Smoker

  • Remove your flank steak from the refrigerator but leave in the marinade until you are ready to place it on the smoker.
  • Set up your smoker, pellet grill, or grill with indirect heat to 200-225°F.
    weber kettle charcoal grill set up for indirect cooking or smoking
  • When the smoker or grill is up to 200°F, add your wood chunks to the coals, or wood chips the tray or smoker box. Alternatively, you can add wood pellets to a pellet tube smoker. Place the smoker box or pellet tube smoker over the hot coals or burners.
    smoking wood on lit charcoal
  • When smoke begins to come out the vents, place your flank steak on the grate, away from the direct heat if using a grill.

Smoking the Flank Steak

  • Monitor your flank steak internal temperature. After about 30-45 minutes your steak should reach an internal temperature of 110°F.

Prepare for Reverse Searing

  • If you are using a grill, you can reverse sear the flank steak directly on the hot side of the grill. However, if you are using a pellet grill or smoker that does not provide direct heat, preheat your broiler with the top oven rack at its highest position.
  • Alternatively, you can preheat a large cast iron pan with olive oil. Let it come up to medium to medium-high heat now and then crank to high later when time to sear the flank steak.

Reverse Searing the Smoked Flank Steak

  • Once the flank steak reaches 110°F internally, either move it over to the HIGH direct heat side of the grill, place it on a foil lined baking sheet and position it under the preheated broiler, or place in the cast iron skillet on HIGH heat with olive oil.
    reverse searing a smoked flank steak
  • Cook the flank steak with HIGH direct heat for about 2-3 minutes on each side
  • Remove the smoked flank steak from the direct heat and move it back to the indirect side of the grill or back into the smoker at 200°F until the internal temperature reads 130°F on an instant read thermometer for a medium level of doneness. (The internal temperature will rise another 5°F while resting.)
  • Remove the flank steak from the grill or smoker and place on a large cutting board, uncovered to rest for 15 minutes before carving.
    resting a smoked london broil
  • Slice in thin strips, on a bias, against the grain of the meat with a good meat slicing knife. Serve immediately.
    smoked flank steak

Nutrition

Calories: 450kcal