What's Going on With the Chicken?

I buy this big pot from Amazon and then I go to Panzers Delicatessen in St John's Wood because there you can buy, not just chicken. But also boiler chicken. So what you're actually buying is quite an old chicken which is quite lean. It doesn't have a lot of meat on it because it's really all about the bones and the giblets and all that kind of stuff. And some people skim that foam off but what I do is I decant the chicken into another pot because I don't want any of that. The first 20 to 30 minutes of the boil actually, you just see all the grease on top and everything and the foam and everything