Bún riêu — the tomato-crab noodle soup — is a beloved staple of Boston's Dorchester Vietnamese restaurants. The broth gets its tangy character from ripe tomatoes, while the signature crab-and-egg mixture (riêu) floats in delicate, lacy pillows on top. Fields Corner, Boston's Little Saigon, has several excellent versions, each with its own twist.

Ánh Hồng Restaurant top-pick

Anh Hong's bun rieu is a standout, with large pieces of fresh tomato and generous amounts of fried tofu that soak up the broth beautifully. The crab-and-egg pillows are substantial and flavorful — not the skimpy, shredded versions you get at lesser places. Their version adds pieces of imitation crab as an extra seafood ingredient, which gives the soup an unexpectedly sweet that complements the tangy tomato base. It's been a Dorchester institution for years, and this dish is a big reason why.

Hien Vuong Restaurant best-value

Hien Vuong serves a vermicelli noodles with incredible depth of flavor. The crab and egg mixture comes in large, generous pieces that break apart into the broth, enriching every spoonful. The broth is notably well-balanced — tangy from tomatoes, savory from shrimp paste, with a hint of annatto oil that gives it a beautiful deep orange color. The fried tofu puffs are cooked until they're soft and spongy, perfect for soaking up the broth. It's a bowl that rewards the trip to Dorchester.

Pho Le Restaurant hidden-gem

Pho Le offers a bun rieu that's consistently good and reliably available. The broth is clean and bright, with visible tomato chunks and a good balance of sweet and sour. The crab topping is generous, and they don't skimp on the fried tofu. It's a solid, no-surprises version that satisfies the craving.