Friends are really important, especially when you've had the successes that I've had. I've gone really far in my career, so they're the ones that keep you humble, keep your feet on the ground.

I was 18 when I first started working at a restaurant. I was a dishwasher. I only got the job because I wanted to go to Ibiza for vacation, and washing dishes was the only job I could find.

Ferran Adria making hamburgers... some thought it was crazy. But getting them perfect was a challenge. Plus I'm fascinated by all aspects of food.

When I was a teenager, my idol was the Dutch footballer Johan Cruyff. He's the only person I've ever asked for an autograph.