Sous Vide Ribeye Steak

1 ribeye steak
1 tbls. butter
1 teaspoon soy sauce or worcestershire
Salt
Pepper

Set Anova Sous Vide Precision Cooker to 128°F / 53.9°C
Season steak with salt, pepper, soy sauce, and butter. Seal steak in vacuum bag or resealable ziplock.
Place in pre-heated water bath and cook for 2 hours.

Cast-iron finish

When the timer goes off, remove steak from bag. Dry well.
Prepare a hot cast-iron skillet and *sear steak on both sides for one minute. Near the end, add thyme, garlic, and butter and baste.

*Note: I use grapeseed oil for the searing.