01 - Place the potato chunks in a large pot and cover with cold water. Add a generous pinch of salt.
02 - Bring to a boil over medium-high heat, then reduce to a simmer. Cook for 15 to 20 minutes, or until potatoes are fork-tender.
03 - Drain the potatoes well and return them to the hot pot.
04 - Add the butter. Mash the potatoes using a potato masher or ricer until smooth.
05 - Gently heat the cream until warm, then slowly pour into the potatoes, mixing until creamy and smooth.
06 - Season with salt and pepper to taste. Serve immediately, optionally garnished with extra butter or chopped chives.