Do I have to buy special / expensive ingredients?

NO! Quite the opposite in fact - You can produce gourmet tasting meals that save you money.

Sous-vide cooking transforms tough, lean and often cheap cuts into mouth-wateringly tender results.

Soft succulent beef short ribs cooked at 55°C (131°F) are just like the prime cuts, but about 6 times cheaper – what’s not to like?