A velvety mash of Aljezur's famous sweet potatoes, enriched with Portuguese cultured butter, a touch of cream, and freshly grated nutmeg.
Boil sweet potato cubes in salted water for 15-18 minutes until completely tender when pierced with a fork. Drain well.
Pass the steaming sweet potatoes through a potato ricer or mash thoroughly with a potato masher in the pot.
Beat in butter and warm milk over low heat with a wooden spoon until silky and smooth.
Season with a pinch of nutmeg, salt, and white pepper. Serve warm.