"Unfortunately unless you ARE a Southern cook it is very difficult to find a cured, but uncooked ham north of Virginia. It can be done but not easily. This is one recipe that Nigella might consider being much more specific about the differences between UK and US. Cooks, pay attention. Most US hams are already cooked and don't need to be boiled unless you are lucky enough to have access to Country Ham as it's sometimes called, which are cured but not cooked. Those can follow Nigella's directions. Otherwise, SKIP the boiling.