Peel and chop your potatoes into 5 to 7 cm (2 to 3 inch) pieces.
Once cut, rinse and drain your potatoes to remove any excess starch.
Place in a saucepan and cover with cold water and add salt.
Bring to the boil and simmer gently for 15 to 20 minutes until fork tender.
Drain and put the potatoes back on the hob, cover with a clean tea towel and gently heat for a minute or two to dry out.
Use two separate pans to individually melt the butter and warm the milk. Alternatively, use a microwave and two glass bowls or jugs.
Pass your potatoes through a ricer and gently fold in the warmed butter first.
Add the warmed milk or cream and gently fold in. Be careful not to overwork the mash.
Check the seasoning and add extra salt if necessary.
Serve immediately or keep in a warm place for up to 20 minutes covered with a clean tea towel - or try the slow cooker.