Sous Vide is a method of cooking which food is placed in a plastic pouch (preferably vacuum packed) and immersed in water to cook at about 55-58 deg ideally. This method does take longer but the results are so much better.
Some benefits of Sous Vide Cooking:-
Consistency. Because you cook your food to a precise temperature for a precise amount of time, you can expect very consistent results.
Taste. Food cooks in its juices. This ensures that the food is moist, juicy and tender.
Waste reduction. Traditionally prepared food dries out and results in waste. For example, on average, traditionally cooked steak loses up to 40% of its volume due to drying out. Steak cooked via precision cooking, loses none of its volume.
Flexibility. Traditional cooking can require your constant attention. Precision cooking brings food to an exact temperature and holds it. There is no worry about overcooking.
I seasoned my meat before and vacuum packed. Bring a pan of water to 55 deg temp and place bag inside. Leave a bit of the bag on edge and put a lid on to hold bag in water. Cook for about 1-2 hours. (medium-rare)
When ready remove and heat a little oil in pan on hob, remove the steak and sear on both sides for about 30 secs each side to seal. Place a knob of butter in pan and spoon over meat. Serve.
This will be the juiciest steak you will ever eat.