
Tender boiled sweet potato mashed with coconut cream and a touch of salt — a comforting PNG everyday side dish bursting with natural sweetness.
Kaukau — sweet potato — is arguably the most important food in Papua New Guinea, particularly in the Highlands where it has been cultivated for over 9,000 years, making PNG one of the earliest known centres of sweet potato agriculture in the world. This simple preparation of boiling and mashing kaukau with coconut cream transforms a humble staple into something deeply satisfying. The natural sweetness of the purple or orange-fleshed varieties melds beautifully with the richness of coconut, creating a dish that is as nourishing as it is delicious. Served alongside mumu pork or grilled fish, it is a cornerstone of daily PNG cooking.
Serves 4
Place sweet potato chunks in a large saucepan, cover with cold salted water, and bring to a boil. Cook for 20–25 minutes until completely tender.
Drain the sweet potato and return it to the hot pan over low heat for 2 minutes to steam off excess moisture.
Mash the sweet potato until smooth. Add coconut cream, coconut oil, salt, and pepper. Stir vigorously until silky and well combined.
Transfer to a serving bowl and garnish with chives or spring onion. Serve immediately alongside grilled fish or mumu pork.
Purple sweet potato gives a dramatic colour; orange adds more sweetness.
Warm the coconut cream before adding to keep the mash fluffy.
A pinch of nutmeg or cinnamon adds lovely warmth.
Add roasted garlic to the mash for depth.
Stir in fresh coriander for an herby version.
Top with crispy fried shallots for texture.
Store in the fridge for up to 3 days. Reheat with a splash of coconut milk.
Archaeological evidence from the Wahgi Valley in the PNG Highlands confirms sweet potato cultivation dating back at least 9,000 years, predating its arrival in other parts of the world. It remains the backbone of the Highlands diet to this day.
Any variety works, but PNG purple sweet potato (if available) has a beautiful colour and a slightly nuttier flavour than the common orange variety.
Per serving (280g) · 4 servings total
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