French for “under vacuum,” sous vide cooking involves immersing vacuum-sealed food in a temperature-controlled water bath until the food is cooked to your liking. It might sound intimidating, and it’s true that this cooking method was once the province of professional cooks with expensive equipment. But that’s not the case anymore — not only is sous vide cooking more accessible than ever now, but there are a number of sous vide machines out there that don’t cost a fortune.