Bò lúc lắc — literally "shaking beef" — takes its name from the wok technique used to cook it: cubed beef shaken and tossed over very high heat until seared on multiple faces. The dish is Vietnamese-French in origin, the beef filet technique a colonial borrowing integrated into the Vietnamese flavour vocabulary of fish sauce, lime, and watercress.
Beef filet (or sirloin) cut into 2–3cm cubes, marinated in oyster sauce, fish sauce, garlic, and sugar, then cooked in a very hot wok with rapid shaking and tossing until seared on all faces and medium-rare within. Served on a bed of watercress with a dipping sauce of lime juice, salt, and pepper.
- The beef must be at room temperature before cooking — cold beef drops the wok temperature and produces steam rather than sear - The wok must be smoking hot before the beef is added — 300°C+ for proper wok hei and sear [VERIFY] - Add the beef in a single layer and do not move for 45–60 seconds — allow a crust to form before shaking - The shaking begins once the base is seared — toss to expose all faces to the hot wok surface - Total cooking time is very short — 2–3 minutes for medium-rare [VERIFY by cube size]
VIETNAMESE FOOD ANY DAY — Technique Entries VN-01 through VN-20