Season each steak with kosher salt and freshly ground black pepper.

Place one filet into a sealed bag with the unsalted butter, several sage leaves, and 4 garlic cloves. With the other steak, Put is into a separate bag with the olive oil, several sage leaves, and the remaining garlic cloves.

Place the steak into the sous vide water bath at 130°F for 3 hours.

Remove the steak from the sous vide and the bags.

Sear them either on a very hot grill or cast iron.