Sous Vide Beef Flank Steak

Prep Time 5 minutes
Cook Time 2 hours 10 minutes
Total Time 2 hours 18 minutes
Course Main Course
Servings 4


  • Skillet
  • Sous Vide Immersion Circulator
  • Cooking Container


  • 1 beef flank steak Wagyu or Angus
  • Kosher salt & freshly ground black pepper
  • Neutral oil we used avocado oil
  • 1 sprig fresh rosemary
  • 3 sprigs fresh thyme
  • 3 tbsp black truffle butter


  • Preheat a water bath to 133°F using an immersion circulator.
  • Season flank steak with salt and pepper; place in vacuum bag. Add about a tablespoon of oil to the bag and massage to coat steak. Place herbs in the bag then seal.
  • Place the bag in the water bath and cook for 2 hours.
  • Remove steak from the bath and blot dry with paper towels
  • Heat a large skillet over high heat. Sear the steak until nicely browned on one side, turn over then add truffle butter to pan. Continue to sear the other side while tilting the pan and basting the steak with the melted butter.
  • Remove from pan, rest for about 3 minutes, then slice against the grain and serve with your favorite side dishes.
Keyword sous vide, steak