Here’s how to ensure your next filet mignon is worth every penny. Velvety-smooth tenderloin steak—or filet mignon—makes for a decadent dinner. But there’s no denying it’s pricey. And ...

One big advantage that sous vide has over traditional methods is that you can't overcook meat. Houser, for example, cooks his beef fillets at 129.5 degrees for about two hours.