INGREDIENTS:
750g Maris Piper, King Edward or Cyprus potatoes (or any variety that has a specialist name and isn’t just called ‘white potatoes’, which are the ones in supermarkets with hardly any flavour)
Unsalted real butter (there are lots of brands of regular butter – just make sure it isn’t one that has been mixed with any cheap industrial fillers, which are found in many of the ready-to-spread soft butters)
Sea salt
Lots of ground black pepper