Bubble and Squeak

I once lived with a man who could be stopped in midsentence of even the most savage row if I started making this dish. You may imagine I am something of an expert at it.

There are three things to remember:

1. There is no substitute for lard or beef dripping – if you object, eat something else.
2. You need a really heavy frying pan.
3. The potatoes must be cold before you start.