When is khao chae eaten?

In the hot season, from mid-March to the end of April, around Songkran. Some families keep making it until the heat breaks.

Why is the rice firmer than ordinary steamed rice?

It is cooked, rubbed clean of its starch and outer layer, then steamed again briefly, so it stays separate in water. Ordinary jasmine rice is too soft, which is why recipes call for a firmer rice.

What should I watch for if I make it at home?

Use clean drinking water and ice from a trusted source, keep the scented water and side dishes in the fridge, and do not add camphor or borneol from old recipes unless you are sure they are food grade.

Khao chae: from Mon Songkran rice to a royal dish, and when it reached the court

Khao chae is rice polished until the grains turn translucent, served in cool water scented with candle smoke and flowers, with a spread of strongly flavoured side dishes. It started as the Mon people’s Songkran rice before it entered the Thai palace and was refined into the “royal” khao chae known today. When exactly it reached the court is a question the sources answer differently. This article gives both accounts, and explains how the dish stayed cool in an age without refrigerators.

The Mon Songkran rice

The Mon treat Songkran as their New Year, and two foods are made only at this time: kalamae toffee and khao chae. In Mon the dish is called pheung da chok (เปิงด้าจก์), literally “water rice”.

It is ritual food, not something cooked on a whim. Once ready, it is first offered to the deities, then to monks, then sent to respected elders, and only what remains is shared by the family. The legend tied to it tells of a rich man without children who washed rice seven times, cooked it and offered it to the spirit of a great banyan tree on Songkran day. King Rama III had this Songkran legend inscribed at Wat Pho, on seven stone slabs.

A page from Suan Sunandha Rajabhat University’s management faculty adds that the dish spread into Thai society with Mon people who settled in the country, particularly in the Ayutthaya period.

Rama II or Rama IV?

This is where the accounts part ways.

	The Rama II account	The Rama IV account
Who tells it	English Wikipedia, and the Suan Sunandha Rajabhat University page	An article by a scholar of Mon culture in Silpa Wattanatham magazine
The story	Around the reign of Rama II, the Mon recipe was refined into a court dish, adding candle-smoked flower water and carved side dishes	Rama IV stayed at Phra Nakhon Khiri palace in Phetchaburi; Chao Chom Manda Son Klin, a consort of Mon descent, went with him, and her khao chae passed to the royal kitchen and to the people of Phetchaburi
Evidence cited	No primary document named	A granddaughter’s memoir of the consort

The same Mon-culture article admits that Mon people have eaten Songkran rice for a long time “with no evidence of when it began”, and that khao chae came into the palace through Mon women serving in the inner court, which could have happened more than once.

A third thread links Phetchaburi to the court again. An older Silpa Wattanatham article (April 1992) says King Rama V remembered a khao chae recipe from Phetchaburi and had the kitchen at Suan Sunandha palace make it until it suited him, giving rise to “Suan Sunandha khao chae”. There is also the story that Chao Chom Manda Son Klin’s khao chae was served at royal tables across several reigns.

The two accounts need not fully contradict each other. Khao chae may have entered the palace more than once, through more than one person. What is missing is a primary document fixing the date.

Clay pots and cooling before refrigerators

Khao chae is a hot-season dish, eaten from mid-March to the end of April. Before ice was available, water was kept cool in earthenware jars or pots placed in the shade.

The clay pot does two jobs: it holds the cool, and it takes on scent. A Mon method quoted in Silpa Wattanatham describes smoking the pot in detail. Wash the pot and leave it soaking in water for one night. Build a fire of coconut husk, sprinkle rice husk over it (husk from sticky rice is best), and turn the pot upside down over the smoke, adding husk little by little and never letting the fire get hot enough to crack the pot. The clay holds the fragrance and passes it to the water added later.

Khao chae from raw rice to the bowl

The rice and the scented water

Khao chae needs grains that are firm and separate and do not turn mushy in water. Ordinary jasmine rice is too soft. The Mon method uses good, aged rice, rinsed about seven times to remove the starch, cooked until just done, then rubbed clean in cold water. The palace version polishes the grains until they are “clear as glass”, leaving only the core, then wraps them in white cloth and steams them again briefly.

Worked example: timing the scented water

Wikipedia sets out the steps for the scented water. Count the time.

Half-fill a large pot with water and add one or two handfuls of jasmine flowers.
Float a lit, flower-scented candle on the water and cover loosely for 15 minutes.
Repeat twice more, using a candle with a different scent each time.

Three rounds × 15 minutes = 45 minutes, before counting the time to cook and polish the rice. The Suan Sunandha palace recipe adds another step: grind 3 to 4 strands of saffron with 2 to 3 flakes of borneol in a mortar, mix with rose water, and pour into the jasmine water. Numbers like these explain why khao chae was once food for households with several pairs of hands in the kitchen.

Five or seven side dishes

The sides are dry, salty and strongly seasoned, mostly fried or stir-fried ahead of time. The rice is eaten with water, so bold flavours balance it, and the sides keep for days through the hot season. The Mon-culture scholar notes that some places serve five, others seven, and neither is wrong.

Side dish	What it is
Fried shrimp paste balls	Seasoned shrimp paste rolled into balls and fried
Stuffed shallots	Shallots filled with fish, battered and fried
Stuffed sweet peppers	Peppers filled with pork, fried and wrapped in egg
Shredded pork or beef	Sweetened, then dried and fried
Sweet pickled radish	Stir-fried with egg, sweet and salty
Fresh accompaniments	Green mango, cucumber, wild ginger (krachai), chili, spring onion to cut the sweetness

Thai-Mon households also make sides such as stir-fried salted beef and stir-fried pickled garlic. Mon table manners are to put rice in a bowl, add the candle-smoked water, use a serving spoon to move a little of one side dish onto your own spoon, then take rice and water after it. The sides do not go into the bowl.

Common mistakes

Using rice that is too soft. New-crop jasmine rice turns mushy. Choose a firmer or aged rice and do not skip rubbing off the starch.
Tipping the side dishes into the bowl. The water turns oily and cloudy and loses the flower scent. Alternate bite by bite instead.
Adding camphor or borneol from old recipes. Wikipedia notes some old recipes used camphor for a cooling effect. At home, leave it out unless you are sure it is food grade and safe in that amount. Use unsprayed flowers and a candle made for scenting food instead.
Leaving the water and sides out all day. Food spoils fast in the hot season. Use clean drinking water and ice from a trusted source; see Ice, drinking water and iced drinks in Thailand.

Summary

Khao chae is pheung da chok, the Mon Songkran rice offered to the deities before it is eaten, which entered the palace and became royal khao chae. One account places that under Rama II; another traces it through Chao Chom Manda Son Klin under Rama IV at Phetchaburi; and Rama V brought a Phetchaburi recipe into the Suan Sunandha palace. The chill came from clay pots in the shade, the scent from candle smoke and jasmine, and the five or seven side dishes vary from place to place.

Sources

Ingredients and heat vary by kitchen and recipe. If you have a food allergy, ask before you order, every time.