A marinating flank steak doesn’t even need to be marinated ahead when you cook sous vide; it becomes juicy and tender as it cooks in its own juices. Sous vide cooking takes the guesswork out of cooking steak to your desired doneness–the temperature you set your water bath is the internal temperature your steak will cook to, every time! Be sure to sear on a hot grill or grill pan for the final browning. The savoury tapenade with mushrooms is a twist on the French classic and tailor made to go with beef. Roast potatoes or frites and a leafy, vinaigrette-dressed salad would be ideal to complete the meal.