Com tam is the defining plate of Saigon: a mound of fragrant broken rice topped with a smoky grilled lemongrass pork chop, shredded pork skin, a slice of steamed egg cake, cool cucumber and tomato, a drizzle of scallion oil, and a little bowl of sweet-sour fish sauce to pour over it all. The combination of textures and flavors, charred pork against soft rice, savory against sweet, is one of the most satisfying single plates in Vietnamese cooking, and it makes a complete, generous meal.
From Humble Rice to Saigon Icon
Com tam means broken rice, and its story is one of humble beginnings. It emerged among poor rice farmers in the Mekong Delta, who cooked the broken grains, fragments left over from milling and once regarded as inferior, because there was not enough whole rice to sell. As Vietnam urbanized through the twentieth century, com tam spread through the southern provinces and became hugely popular in Saigon, now Ho Chi Minh City. There, vendors dressed it up with grilled pork and other toppings to suit a range of tastes, and it grew into one of the city’s signature dishes, counted among Saigon’s culinary pillars. What began as leftovers became a beloved icon.
The Broken Rice
The foundation of the dish is the broken rice itself, and it is not a defect but the whole point. Broken rice consists of the small fragments of rice grains that break during milling, and cooked up they have a softer, slightly stickier, more absorbent texture than whole-grain rice, which many people prize. Rinse it well and steam or cook it until fluffy and tender. Sold as com tam at Vietnamese and Asian markets, it gives the plate its characteristic base. If you cannot find broken rice, regular jasmine rice stands in, though the distinctive fine, soft texture of true broken rice is part of what makes the dish. It soaks up the fish sauce and pork juices beautifully.
The Grilled Pork
The star topping is suon nuong, grilled lemongrass pork chop, and it is what most people come to com tam for. Marinate pork chops or shoulder steaks in minced lemongrass, garlic, fish sauce, and sugar for at least an hour so the flavor sinks in, then grill them over charcoal or high heat until they are charred and caramelized at the edges. That smoky, sweet-savory char is central to the dish, and the sugar in the marinade helps it caramelize. Grilling over real fire gives the truest result, though a grill pan or broiler works. The pork stays juicy inside with deeply browned, slightly crisp edges, resting on the soft rice.
The Classic Toppings
What makes com tam a feast is its array of toppings around the pork. Bi is shredded pork and pork skin tossed with roasted rice powder, adding a chewy, nutty texture. Cha trung is a steamed cake of ground pork, egg, and glass noodles, soft and savory, sliced into wedges. A fried egg often joins them, along with sliced cucumber and tomato for freshness and pickled vegetables for tang. Not every plate has all of these, and you can pick and choose, but the combination of grilled pork, shredded pork skin, and egg cake is the classic trio. Each adds a different texture, turning simple rice into a layered plate.
Scallion Oil and Sauce
Two finishing touches pull com tam together. Mo hanh, scallion oil, is chopped scallions cooked briefly in hot oil until softened, then spooned over the rice and pork; its savory, oniony richness ties the plate together and is not to be skipped. And nuoc cham, the sweet-sour dipping sauce of fish sauce, sugar, lime, water, garlic, and chili, is poured over the whole plate as needed rather than used only for dipping, seasoning the rice and everything on it. This sauce is considered an essential part of com tam, so make it well balanced and keep it coming. Com tam is eaten with a fork and spoon, not chopsticks, as a plate rather than a bowl.
Serving Com Tam
Serve com tam on a plate: a bed of warm broken rice, the grilled pork chop alongside, the shredded pork skin and egg cake arranged around it, cucumber and tomato for freshness, scallion oil spooned over, and the bowl of nuoc cham on the side to pour. It is a hearty, complete meal, popular in Saigon at any time of day. The components can be made in stages, with the marinade, egg cake, and toppings prepped ahead and the pork grilled to order, which makes it manageable at home. Set out the sauce and let everyone season their own plate to taste.
Common Questions
What is broken rice?
Broken rice is the small fragments of rice grains that break during milling, once considered inferior but now prized for com tam. Cooked, it is softer and more absorbent than whole rice. It is sold as com tam at Asian markets; jasmine rice substitutes if needed.
Can I make it without a grill?
Yes. A grill pan, cast-iron skillet, or broiler on high all char the lemongrass pork well, giving color if not quite the charcoal smoke. The marinade carries the flavor. Real fire gives the most authentic taste, but any high heat works.
Which toppings are essential?
The grilled lemongrass pork chop is the heart of the dish. Shredded pork skin (bi) and steamed egg cake (cha trung) are the classic companions, but you can serve just the pork with rice, sauce, and scallion oil for a simpler plate. Mix and match to taste.
Com tam, broken rice, began among Mekong Delta farmers who cooked the broken rice grains once seen as inferior, and became a signature street dish of Saigon topped with grilled pork.