Learn how to make perfect sous vide filet mignon, seared to golden perfection and served with thyme-infused butter for a restaurant-quality meal at home.
Preheat a sous vide water bath to 130°F for medium-rare or 135°F for medium, using an immersion circulator.
Season the steaks generously with kosher salt and black pepper on all sides.
Place the seasoned steaks, thyme sprigs, smashed garlic clove, and olive oil into a sealable vacuum bag or a zip-top bag. Seal the bag using a vacuum sealer or the water displacement method.
Submerge the bag in the preheated water bath and cook for 1 hour and 30 minutes, ensuring the steaks remain fully submerged.
Remove the steaks from the bag and pat them dry thoroughly with paper towels. Discard the thyme and garlic.
Heat a cast-iron skillet over high heat until smoking hot. Add the butter and swirl to coat the pan. Sear the steaks for 45 seconds to 1 minute per side, rotating to create a golden-brown crust.
Let the steaks rest on a cutting board for 5 minutes before slicing and serving.