Sous Vide Salmon with creamy polenta

Salmon is a perfect candidate for sous vide cooking, as it remains tender and moist thanks to this treatment. Sous vide—French for “under vacuum”—has been used for decades in commercial kitchens but has become popular with some home cooks in recent years. It’s a precise method of cooking vacuum-packed (or in the case of the home kitchen, food sealed in heavy-duty, zip-top freezer bags) food slowly and evenly in low-temperature water that is circulated with the aid of a small machine. It ena