Peel the potatoes and cut them into similar-sized chunks.
Place the potatoes in a large pot and cover with cold water. Add a generous pinch of salt.
Bring to a boil, then cook until the potatoes are very tender.
Drain well and return the potatoes to the hot pot for 1 minute to remove extra moisture.
Mash the potatoes until smooth.
Warm the cream and butter in a small saucepan until the butter melts.
Add the warm cream mixture to the potatoes a little at a time, stirring gently.
Season with salt and black pepper.
Serve warm with olive oil or melted butter, herbs, and extra black pepper.