• 6 × 200 g (7 oz) pieces of pork tenderloin
• sea salt flakes
• 60 ml (2 fl oz/¼ cup) extra virgin olive oil
• 20 ml (⅔ fl oz) olive oil

Heat a large saucepan of water to 63°C (145°F). Trim any excess sinew from the pork. Season with salt and place each in a small vacuum-seal or zip-lock bag with 2 teaspoons extra virgin olive oil. Follow the Masterclass on sous-vide cooking and cook for 1½ hours.

Preheat the oven to 180°C (350°F/Gas 4). Remove the pork from the bags. Heat the olive oil in an ovenproof frying pan over medium heat. Sear the pork all over, then roast for 4 minutes. Set aside and rest in a warm place. Thinly slice each piece widthways and serve immediately.