Ingredients
Method
- Season steak with salt and pepper

- Seal in bag and cook at desired temp for 12 to 24 hours

- To a small pot add bag juices (or beef stock), wine and pinch of black pepper. Reduce to 1/3.

- To a pan add 3 Tablespoons of oil, shallots and mushrooms. Cook until they start to get some color.

- Make a roux by adding flour to the shallots and mushrooms, reduce flame cook until the flour is slightly browned.
- Strain the reduced liquid into the roux, adjust consistency of the liquid with water or beef broth. Taste for seasoning.

- Sear steak on one side and flip.
- Add 1 Table spoon butter to sauce and shake pan in incorporate.
- When the steak is seared on both sides remove from the heat. Carve (no need to rest) and serve with sauce.

