
Must-try snack in Udon Thani
Sai krok Isan
Udon Thani, Udon Thani Province
Short fat sausages of pork and rice fermented together for a few days until they turn sour, then grilled over charcoal and eaten whole with raw cabbage, ginger and bird's eye chillies.
Taste
Sour, garlicky, fatty, grilled to a blister
Spice level
Mild
Best time to eat
Any time, from a roadside cart, with the raw ginger
Price range
฿10–20 each
Food type & tags
Best paired with
Chai & chutney
The dish
What is Sai krok Isan?
Expect it to be sour, garlicky, fatty, grilled to a blister, with a mild kick.
The story
Why is Sai krok Isan famous in Udon Thani?
The sourness is fermentation rather than an added acid — the rice in the mix does it, over two or three days in the heat — which makes this a preserving technique that turned into a snack. They are sold from carts by the string all over the north-east, and the raw ginger and chilli they come with are not a garnish but the counterweight to the fat.
When to go
Best time to eat it
Sai krok Isan is best enjoyed at any time, from a roadside cart, with the raw ginger, ideally with hot masala chai and a tangy tamarind–mint chutney. Many spots make fresh batches through the day, so it’s easy to fit into your plan.
Where to eat
Best places to try Sai krok Isan
Trusted Udon Thani spots — hours and directions.
Open From about 5:00 PM daily until late
Sai krok Isan available here
DirectionsOpen From before dawn until mid-morning
Sai krok Isan available here
DirectionsOpen Late morning until evening; many are lunch-and-afternoon places
DirectionsOpen Breakfast through the afternoon; many close early evening
DirectionsPerfect pairing
What to eat with Sai krok Isan
Sai krok Isan pairs best with hot masala chai and a tangy tamarind–mint chutney. It’s a non-vegetarian snack, so keep the rest of the plate light and let the dish be the star.
Make a morning of it
Pair it with a photo spot
Eat well, then shoot nearby in Udon Thani.

Ban Chiang
Late morning at the open pit at Wat Pho Si Nai, when the sun is high enough to reach into the excavation — the museum interior is lit for objects rather than for cameras
Fuel up on Sai krok Isan, then shoot Ban Chiang.
See photo spot
Nong Prajak Park
The hour before sunset, when the light is across the water and the city comes out to walk — and at dawn, when the mist is on the lake and the exercise groups are out
Fuel up on Sai krok Isan, then shoot Nong Prajak Park.
See photo spot
Phu Phrabat
Early morning, when the light comes sideways through the trees onto the mushroom rocks and the forest is still cool — this is a walking site and by eleven you will not want to be on it
Fuel up on Sai krok Isan, then shoot Phu Phrabat.
See photo spotWant something else?
Search Udon Thani food by craving
Sai krok Isan in Udon Thani
On the tea hour in Udon Thani, Sai krok Isan holds its place - sour, garlicky, fatty, grilled to a blister, non-vegetarian, and exactly the kind of thing worth crossing town for.
The short version: Short fat sausages of pork and rice fermented together for a few days until they turn sour, then grilled over charcoal and eaten whole with raw cabbage, ginger and bird's eye chillies
🍛 What it is
Start with the description and hold it in mind: short fat sausages of pork and rice fermented together for a few days until they turn sour, then grilled over charcoal and eaten whole with raw cabbage, ginger and bird's eye chillies. It is a non-vegetarian preparation, which shapes where you find it and when.
It sits in the city's food life as a snack - eaten at any time, from a roadside cart, with the raw ginger, served the way the locality serves it, and priced the way the locality prices it.
Locally it is filed under: thailand, isan, fermented - which is the vocabulary to use when asking for it.
📜 Where it comes from
The local context: the sourness is fermentation rather than an added acid — the rice in the mix does it, over two or three days in the heat — which makes this a preserving technique that turned into a snack. They are sold from carts by the string all over the north-east, and the raw ginger and chilli they come with are not a garnish but the counterweight to the fat.
Dishes like this travel badly and reproduce badly - the version in Udon Thani is the reference version, made for the local palate at local prices.
👅 The taste, honestly
Ask what it tastes like and the answer is sour, garlicky, fatty, grilled to a blister; anything more specific you should taste rather than read.
The heat is gentle - a warmth rather than a challenge.
As a snack dish it is made to accompany rather than dominate - which tells you what to order around it: it sits beside a drink or a main without competing.
🕐 When to eat it
The local answer to when is simple: any time, from a roadside cart, with the raw ginger. Follow it and you get the dish at its best; ignore it and you may not get it at all.
Snacks live on turnover: the stall doing brisk business is the stall serving fresh batches, and that single observation does more for quality than any review.
🥣 Ordering it well
In Thailand, the stall with the queue is the stall to join - locals eat standing at the good ones, and the line is the entire ranking system.
💰 What it costs
Expect to pay around ฿10–20 each for it in Udon Thani - the honest local range, and a useful anchor for spotting the places priced for visitors rather than residents.
Think of it as a budget-friendly item - kind to every wallet, and no less authentic for it.
🤝 Eating it like a local
The Thai table runs on shared dishes and the fork-and-spoon pair - the fork loads, the spoon eats - and a dish like this arrives in the middle of the table for everyone.
And the pairing instinct: whatever the neighbourhood drinks with its snacks - usually the local tea or coffee, taken slowly.
Questions
Sai krok Isan — FAQ
What is Sai krok Isan?
Short fat sausages of pork and rice fermented together for a few days until they turn sour, then grilled over charcoal and eaten whole with raw cabbage, ginger and bird's eye chillies.
Is Sai krok Isan veg or non-veg?
Sai krok Isan is non-vegetarian. Spice level: mild.
Where can I try the best Sai krok Isan in Udon Thani?
Try The grills at UD Town and The morning markets. See the "Best places to try it" section above for hours and directions.
What should I eat with Sai krok Isan?
Pair it with hot masala chai and a tangy tamarind–mint chutney.
When is the best time to eat Sai krok Isan?
Sai krok Isan is usually eaten any time, from a roadside cart, with the raw ginger.
