Com hen, the cheapest good thing in Hue

Com hen is a plate of cold rice with clams the size of a fingernail and a dozen things scattered over it. Hue sells it for less than a dollar, and it is better than that sentence suggests.

What is in it?

Rice at room temperature, first, which is the part visitors are not ready for. Twelve components go on top of it. Over it go hen — tiny freshwater clams sautéed with shallot — and then the garnishes, which are the actual dish.

The list runs to a dozen: crushed peanuts, sesame rice cracker in shards, pork crackling, shredded banana blossom, sliced star fruit, herbs, spring onion oil, fried shallots and chilli. A spoonful of mam ruoc, the fermented shrimp paste Hue cannot cook without, goes in last. A bowl of the clam broth comes on the side, hot, and the whole plate costs 15,000 to 30,000 dong.

Why is the rice cold?

Because the dish was built from leftovers and never pretended otherwise. Com hen comes from the households of Con Hen, the sandbar island in the Perfume River. Yesterday's rice met the day's clams there, and the result outlived its own economics.

The temperature contrast is the point now. Cool rice, hot broth poured over or sipped alongside, everything else crisp. Reheating would collapse the texture the assembly depends on.

Where do the clams come from?

The Perfume River, and traditionally from Con Hen, the island the dish is named after. Gatherers dredge the clams from a 2 km sandbar in the river and boil them in bulk, then separate the meat from thousands of shells before dawn. A plate carries perhaps 50 g of it and costs 15,000 to 30,000 dong.

The broth from that boiling is what ends up in the side bowl, which is why nothing is wasted. That work is why a dish this cheap is still made by specialists rather than by every rice shop. The Hue hub covers what else the city cooks that nobody else does.

How spicy is it?

Hue-spicy, which is a real category. The chilli is mixed through rather than offered on the side, and a standard bowl runs hotter than almost anything in Hanoi or Saigon.

Say it khong cay if you want it toned down, and the counter will use a lighter hand. The ordering guide covers the phrases; this is the dish most worth using them on.

What are the three versions?

Com hen is over rice. Bun hen is the same clams over rice noodles, softer and easier for a first try. Hen xuc banh trang serves the clam mixture as a salad with sesame rice crackers to scoop it. That is the version the photograph above shows and the one to order with beer.

Most counters sell all three from the same pot. Ordering one of each for a table is normal and costs less than a coffee in a hotel.

Why is Hue food like this?

Hue cooks small and many, and com hen is that habit in one plate. The imperial kitchen worked to a court standard that valued a table of many small dishes over a large one, and the city's everyday food kept the shape after the court went.

The court standard is why a 20,000 dong plate here carries twelve components, and why bun bo Hue is seasoned harder than any northern bowl. The other half of the explanation is poverty: this is a province with thin soil and a long history of making a meal out of a riverbed.

Where do you eat it?

Hue, and specifically the lanes around Con Hen and the streets on the north bank, where counters open early and sell out by mid-morning. A stall with a queue of people on motorbikes is the one.

Outside Hue it appears occasionally in Da Nang and rarely anywhere else, and it is never as good, because the clams are the local part. The what to eat guide maps which city owns which dish.

Is cold rice a problem?

The clams are boiled hard and the crackling and peanuts are dry, so the cooked parts are fine. The raw herbs and the room-temperature rice are the two things worth thinking about. Both come down to how fast the counter is turning over.

Go before ten in the morning at a busy stall and neither is a concern. The street food safety guide sets out the same rule for everything else sold this way.