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Mahi (Tahitian Fermented ʻUru Breadfruit with Coconut Cream)

Mahi (Tahitian Fermented ʻUru Breadfruit with Coconut Cream)

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Ripe Tahitian ʻuru kept sour the old way, kneaded with coconut cream and wrapped in leaf until it sets into a tangy, glossy starch beside fish, pork, or one quiet bowl of rice.

Side Dishes
Polynesian, Tahitian
Make Ahead
Comfort Food
Budget Friendly
45 min
Active Time
1 hr cook169 hr 45 min total
Yield8 servings

The canoe teaches you to feed the day you can't see yet. In Tahiti, on the fenua, the land, that teaching lives in mahi: ripe ʻuru, breadfruit, scraped and kept until it turns sour enough to carry a family past the season. This is Tahitian food. I say that first because the hand matters.

A Tahitian aunty once opened a leaf packet for me and watched my face before she told me anything. The smell was sharp, not spoiled, and the coconut cream had made the sour paste shine. She laughed because I was doing that careful guest thing, looking too hard, trying to understand before eating. Then she said, plain as anything, this is how you don't waste the breadfruit when the tree gives more than one week can hold.

The cousins know this law all across the Triangle, but each island keeps it its own way. Hawaiʻi has ʻulu and poi from kalo. The Marquesas have mei and popoi. Sāmoa, Tonga, and the Cooks have their own hands with ʻulu, mei, and taro. Tahiti's hand here is preservation: let the ripe ʻuru sour, then knead it with coconut cream and steam it in leaves until it sets soft and tangy. One ocean, one canoe, many bowls.

Most of us no have a leaf-lined pit under a breadfruit tree. So this version uses a clean crock, leaves, a little salt, and a steamer, and I tell you straight where the home kitchen begins and the old pit knowledge belongs to Tahitian families who carry it. Cook it open-handed. Learn the deep parts from Tahiti's own elders. The sourness is not a mistake. It is the island answer to scarcity.

By the time Joseph Banks wrote about Tahiti's breadfruit in 1769, ʻuru was already an old Tahitian staple, carried through voyaging lines and multiplied from cuttings in the fenua. Mahi, the sour pit-preserved form, answered the breadfruit season's rise and fall: scrape ripe fruit, seal it in leaves underground, and a household could eat when storms, drought, or lean months came. The British later sent HMS Bounty in 1787 to move Tahitian breadfruit to Caribbean plantations, but this keeping knowledge belongs to Tahitian families first, deep food, not mission food.

The technique, the tradition, and the story behind every dish.

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Ingredients

ripe ʻuru (Tahitian breadfruit) flesh

Quantity

4 pounds

from 2 to 3 large breadfruit, peeled and cored

fine sea salt

Quantity

2% by weight of prepared ʻuru, about 1 1/2 to 2 tablespoons

for the home crock ferment

banana, breadfruit, or tī leaves

Quantity

8 to 10

rinsed, softened, and divided

fresh coconut cream

Quantity

1 to 1 1/2 cups

plus more for serving

sea salt

Quantity

to taste

after steaming

parchment and foil (optional)

Quantity

as needed

water

Quantity

as needed

for steaming

Equipment Needed

  • 2-quart food-grade fermentation crock or wide-mouth glass jar
  • Fermentation weight or clean small jar that fits inside the crock
  • pH strips for acidic ferments, range 2.8 to 4.6
  • Large steamer pot with tight lid

Instructions

  1. 1

    Choose the ʻuru

    Choose ripe ʻuru, breadfruit in reo Tahiti, with a sweet, yeasty smell and a little give under your thumb. Wash it well, then quarter, peel, core, and scrape or grate the pale flesh into a clean bowl. Use sound fruit only. We no throw out good food, but black wet rot, fuzzy mold, or a rotten smell means that fruit is already gone.

  2. 2

    Line the crock

    Sanitize a 2-quart food-grade crock or wide-mouth glass jar. Soften the banana, breadfruit, or tī leaves, the leaves of the ti plant, with hot water or a quick pass over heat so they bend without tearing. Line the crock with leaves, leaving enough overhang to fold back across the top.

  3. 3

    Salt and pack

    Weigh the prepared ʻuru and mix in 2% sea salt by weight, then pack it hard into the leaf-lined crock so there are no air pockets. Press a clean leaf directly on the surface, set a fermentation weight or a clean small jar on top, and cover loosely so gas can escape.

    The old Tahitian pit can be unsalted and kept by families who know that ground, that season, and that leaf. This home crock uses a little salt and clean tools because a kitchen counter is not the same as a family pit in the fenua, the land.
  4. 4

    Let it sour

    Keep the crock at 70F to 78F for 7 to 21 days, checking that the paste stays pressed under the leaf and weight. The smell should move from sweet breadfruit to sharp, fruity sourness, like sourdough and ripe fruit together. For a home kitchen, use pH strips and cook or chill the paste only once it reads below 4.6. If you see fuzzy mold, pink or orange slime, or smell rot instead of clean sourness, discard it.

    The funk is flavor, not failure. Sour, lactic, fruity, and a little sharp is the point. Rotten is different, and your nose knows the difference.
  5. 5

    Knead with cream

    Lift off the top leaf and scrape away any dry gray surface. Spoon the fermented ʻuru into a bowl and knead in the fresh coconut cream little by little until it becomes a thick, sticky dough that holds a mound. Don't drown it. The cream should gloss the paste and soften the sour edge, not turn it loose.

  6. 6

    Wrap the packets

    Cut softened leaves into broad squares. Spoon about 1/2 cup mahi into each one, fold the sides in, then fold the top and bottom closed into a tight packet. If the leaves are torn, wrap parchment around the packet and foil outside that. The leaf is still the first wrapping, the modern kitchen just helps it hold.

  7. 7

    Steam to set

    Set the packets in a steamer over simmering water, cover, and cook 45 to 60 minutes. The mahi is ready when it has deepened to pale gold and olive-tan, the edges look glossy with coconut cream, and the paste holds together with a gentle spring when pressed through the leaf.

  8. 8

    Rest and share

    Rest the packets 10 minutes before opening. Serve warm or at room temperature, with a spoon of fresh coconut cream if the table wants it. It belongs beside Tahitian fish, pig from the ahimaʻa, the Tahitian earth oven, or today's rice plate. Deep food and everyday food can sit side by side. That's how the islands actually eat.

Chef Tips

  • This mahi is fermented ʻuru, breadfruit, not mahi-mahi the fish. Same spelling in many English kitchens, completely different food.
  • Fresh coconut cream matters here. A thick can works when that's what you have, but fresh cream gives the finished packets their roundness and shine.
  • The sour is the lesson. If the finished mahi tastes tangy, fruity, and rich under the coconut, you did right. If it tastes rotten or harsh in a dirty way, no argue with it.
  • Don't seal a ferment airtight at room temperature. Gas needs somewhere to go, and the paste needs to stay pressed under the leaf and weight.
  • No ripe breadfruit where you live? Eat what you have. Don't force jackfruit or potato into this name. Cook a fresh ʻulu side when you can find it, and wait for mahi until the right fruit comes.

Advance Preparation

  • Start the ferment 1 to 3 weeks before serving, depending on room temperature and how sour the ʻuru becomes.
  • Once cleanly sour, the fermented paste can be refrigerated up to 2 weeks before kneading with coconut cream, or frozen up to 6 months.
  • Wrapped packets can be assembled 1 day ahead and refrigerated, then steamed before serving.
  • Squeeze fresh coconut cream the day you knead the mahi. Fresh cream separates and sours if it sits too long.

Frequently Asked Questions

Nutrition Information

1 serving (about 265g)

Calories
395 calories
Total Fat
14 g
Saturated Fat
12 g
Trans Fat
0 g
Unsaturated Fat
2 g
Cholesterol
0 mg
Sodium
1900 mg
Total Carbohydrates
63 g
Dietary Fiber
12 g
Sugars
24 g
Protein
4 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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