Haupia
The luau's last word, in four ingredients. Coconut cream heated with water until steaming, a cold slurry of cornstarch or Polynesian arrowroot, sugar and a pinch of salt whisked in, cooked two full minutes past the moment it seizes into a glossy pudding, poured into a square pan and chilled three hours into a firm, clean-cutting block served on ti leaves.
- Prep
- 15 min
- Cook
- 12 min
- Serves
- 16 squares
- Difficulty
- Easy
Researched · Kitchen testing pending

Hau means cool and pia is Polynesian arrowroot, the tuber starch that came in the voyaging canoes alongside the coconut palm. Haupia is the ancient dessert of the Hawaiian feast: coconut cream, sugar and starch, cooked until it sets into a firm, silky block that cuts into squares.
It is neither a wobbling jelly nor a soft custard. Done right it holds a sharp edge, melts on the tongue, and tastes of nothing but coconut. It comes to the table on a green ti leaf as the last course of the luau.
- 800 ml2 cans, 13.5 fl oz eachUnsweetened coconut cream or full-fat coconut milk
- 240 ml1 cupCold waterdivided
- 130 g⅔ cupGranulated sugar
- 65 g½ cup plus 1 TbspCornstarch, or Polynesian arrowroot, pia
- 2 g¼ tspFine sea salt
- 2 leaves2 leavesFresh ti leaves, washed, for serving
A starch gel, not a custard
Starch granules hydrate in cold water, then swell and burst between 75 and 85 °C into a network that traps the coconut fat. There are no eggs to curdle. Chilled below 40 °C the amylose realigns into a firm, sliceable gel that melts again at body temperature.
Cream, not cream of coconut
Sweetened cocktail cream of coconut is mostly syrup. Only pure unsweetened coconut cream or full-fat milk has the 20 to 24 percent fat the set depends on.
The five tastes on this plate
Salt is a quarter teaspoon that keeps the sweetness from going flat. Fat is coconut cream's lauric triglycerides. There is no acid and no heat. Umami is the faint vegetal depth of mature coconut.
Equipment
- Heavy 3-quart saucepan
- Whisk and a heatproof silicone spatula
- 20 cm square pan, lightly greased
- Offset spatula
A heavy saucepan so the bottom does not catch, and a square pan for clean 2-inch squares. Line with plastic wrap for an easy lift.
Method
Prepare the pan1 min
Grease the square pan with a drop of coconut oil, or line it with plastic wrap.
Grease the square pan with a drop of coconut oil, or line it with plastic wrap.
Make the slurry2 min
Whisk the cornstarch, sugar, salt and 120 ml of the cold water until completely smooth.
Whisk the cornstarch, sugar, salt and 120 ml of the cold water until completely smooth.
Heat the coconut cream4 min
In the saucepan, heat the coconut cream with the remaining 120 ml water over medium, stirring, until steaming but not boiling, about 75 °C.
Heat unsweetened coconut cream or full-fat coconut milk with the remaining 120 ml water over medium, stirring, until steaming at about 75 °C; do not boil. Do not use sweetened cocktail cream of coconut.
Add the slurry1 min
Re-whisk the slurry and pour it into the hot cream in a steady stream, whisking constantly.
Re-whisk the slurry and pour it into the hot cream in a steady stream, whisking constantly.
Thicken3 min
Lower to medium-low and whisk hard, scraping the base and corners. Within 2 to 3 minutes it turns suddenly from thin liquid to a thick, glossy, bubbling pudding.
Lower to medium-low and whisk hard, scraping the base and corners. Within 2 to 3 minutes it turns suddenly from thin liquid to a thick, glossy, bubbling pudding.
Cook out the starch2 min
Keep stirring with the spatula 2 full minutes more, until glossy and heavy on the spatula with slow-bursting bubbles, 85 to 90 °C.
Keep stirring with the spatula 2 full minutes more, until glossy and heavy on the spatula with slow-bursting bubbles, 85 to 90 °C.
Pour and chill3 hr 30 min
Pour into the pan at once and smooth the top. Cool 30 minutes, then refrigerate uncovered at least 3 hours until firm.
Pour into the pan at once and smooth the top. Cool 30 minutes, then refrigerate uncovered at least 3 hours until firm.
Slice
Wipe a sharp knife with a warm damp cloth and cut 16 squares, wiping between cuts. Serve cold on ti leaves.
Wipe a sharp knife with a warm damp cloth and cut 16 squares, wiping between cuts. Serve cold on ti leaves.
Sensory cues of doneness
- Visual: a glossy, opaque, porcelain-white block that cuts into sharp-edged squares.
- Auditory: slow, thick plopping as the pudding bubbles in the pan.
- Olfactory: clean toasted coconut milk and warm sugar.
Check for an opaque, glossy porcelain-white block that cuts into neat squares. Expect slow thick bubbles during cooking and aromas of coconut milk and warm sugar.
Storing it
Keeps 3 days covered in the fridge. Never freeze: ice crystals break the starch network and it weeps on thawing.
Troubleshooting
- Lumps.
Starch met hot liquid dry. Always a cold slurry first.
- Chalky, and it will not set.
Pulled the second it thickened. Two full minutes after it bubbles.
- Cloying and soft.
Cream of coconut from the cocktail aisle. Pure unsweetened coconut cream only.
Substitutions
One-to-one swaps, with the technique change each one needs.
Ingredient substitutions
| Ingredient | Replace with | Culinary impact and technique adjustment |
|---|---|---|
| Coconut cream | Full-fat canned coconut milk, never lite or carton | Fat is what sets it firm and silky |
| Cornstarch | Arrowroot, tapioca starch or potato starch | A clean, translucent gel |
| White sugar | Raw cane or turbinado sugar | A pale ivory tint |
Scaling
Half
A 10 by 20 cm loaf pan with 400 ml cream, 32 g starch and 65 g sugar; chill 2 hours.
Double
A 23 by 33 cm dish with 1.6 litres cream and 130 g starch, whisked in a 6-quart pot; chill 4 hours.
What to serve it with
- The sweet close of a luau, after kalua pig, poke and long rice
- Slices of ripe island papaya
- Iced hibiscus and mint tea
Questions
What is pia?
Polynesian arrowroot, a tuber starch brought by the first voyagers. It gives a softer, more translucent gel; cornstarch is the modern standard.
Can I freeze it?
No. Freezing ruptures the starch network and the pudding weeps into a spongy mess.
What is haupia pie?
A North Shore bakery invention: chocolate pudding in a crust, haupia on top, whipped cream over that.