Shaking beef or ''bo luc lac'' (, ) is a Vietnamese dish that consists of

beef Beef is the culinary name for meat from cattle (''Bos taurus''). Beef can be prepared in various ways; Cut of beef, cuts are often used for steak, which can be cooked to varying degrees of doneness, while trimmings are often Ground beef, grou ...

that has been cut into small

cubes A cube or regular hexahedron is a three-dimensional space, three-dimensional solid object in geometry, which is bounded by six congruent square (geometry), square faces, a type of polyhedron. It has twelve congruent edges and eight vertices. It i ...

marinated Marinating is the process of soaking foods in a seasoned, often acidic, liquid before cooking. This sauce, called the marinade, can be either acidic (made with ingredients such as vinegar, lemon juice, or wine), or enzymatic (made with ingredien ...

with

soy sauce Soy sauce (sometimes called soya sauce in British English) is a liquid condiment of China, Chinese origin, traditionally made from a fermentation (food), fermented paste of soybeans, roasted cereal, grain, brine, and ''Aspergillus oryzae'' or ''A ...

fish sauce Fish sauce is a liquid condiment made from fish or krill that have been coated in salt and fermented for up to two years. It is used as a staple seasoning in East Asian cuisine and Southeast Asian cuisine, particularly Myanmar, Cambodia, L ...

and

oyster sauce Oyster sauce describes a number of sauces made by cooking oysters. The most common in modern use is a viscous dark brown condiment made from oyster extracts,The Times, 22 January 1981; ''Cook Accidentally on purpose'' sugar, salt and water, thi ...

, then sauteed in a wok with

red onion Red onions (also known as purple or blue onions in some mainland European countries) are cultivars of the onion ('' Allium cepa''), and have purplish-red skin and white flesh tinged with red. They are most commonly used in cooking, but the skin ...

and

pepper Pepper(s) may refer to: Food and spice * Piperaceae or the pepper family, a large family of flowering plants ** Black pepper ** Long pepper ** Kampot pepper * ''Capsicum'' or pepper, a genus of flowering plants in the nightshade family Solanacea ...

before being served on a bed of fresh

lettuce Lettuce (''Lactuca sativa'') is an annual plant of the family Asteraceae mostly grown as a leaf vegetable. The leaves are most often used raw in Green salad, green salads, although lettuce is also seen in other kinds of food, such as sandwiche ...

with slices of

tomato The tomato (, ), ''Solanum lycopersicum'', is a plant whose fruit is an edible Berry (botany), berry that is eaten as a vegetable. The tomato is a member of the nightshade family that includes tobacco, potato, and chili peppers. It originate ...

and

cucumber The cucumber (''Cucumis sativus'') is a widely-cultivated creeping vine plant in the family Cucurbitaceae that bears cylindrical to spherical fruits, which are used as culinary vegetables.French colonization, beef was considered a luxury

ingredient In a general sense, an ingredient is a substance which forms part of a mixture. In cooking, recipes specify which ingredients are used to prepare a dish, and the term may also refer to a specific food item in relation to its use in different re ...

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

, as

cows Cattle (''Bos taurus'') are large, domesticated, bovid ungulates widely kept as livestock. They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus '' Bos''. Mature female cattle are called co ...

were rarely slaughtered for food and were kept as

working animals Working may refer to: * Work (human activity), intentional activity people perform to support themselves, others, or the community Arts and media * ''Working'' (musical), a 1978 musical * ''Working'' (TV series), an American sitcom * ''Workin ...

to be used for labor instead. This dish was, therefore, mostly reserved for formal events, such as wedding banquets and

anniversaries An anniversary is the date on which an event took place or an institution was founded. Most countries celebrate national anniversaries, typically called national days. These could be the List of national independence days, date of independen ...

, although now it has become a common food.

Origin and etymology

Shaking beef originated from the sidewalk eateries of

Saigon Ho Chi Minh City (HCMC) ('','' TP.HCM; ), commonly known as Saigon (; ), is the most populous city in Vietnam with a population of around 14 million in 2025. The city's geography is defined by rivers and canals, of which the largest is Saigo ...

. When the dish was developed, though it used ingredients brought over by the French, it also followed

East East is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fact that ea ...

and

Southeast Asian Southeast Asia is the geographical southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Australian mainland, which is part of Oceania. Southeast Asia is ...

culinary tradition, which calls for the meat to be cut into bite-sized cubes that can be easily handled with

chopsticks Chopsticks are shaped pairs of equal-length sticks that have been used as kitchen and eating utensils in most of East Asia for over three millennia. They are held in the dominant hand, secured by fingers, and wielded as extensions of the han ...

and eaten without the use of

cutlery Cutlery (also referred to as silverware, flatware, or tableware) includes any hand implement used in preparing, serving, and especially eating food in Western culture. A person who makes or sells cutlery is called a cutler. While most cutlers ...

. This detail gives rise to the first possible

etymology Etymology ( ) is the study of the origin and evolution of words—including their constituent units of sound and meaning—across time. In the 21st century a subfield within linguistics, etymology has become a more rigorously scientific study. ...

for the dish. It was basically named ''bò lúc lắc'' because the small, cubed pieces of beef resemble playing dice, which are called ''hột lúc lắc'' in Vietnam. Two other possible etymologies exist centered around the literal

translation Translation is the communication of the semantics, meaning of a #Source and target languages, source-language text by means of an Dynamic and formal equivalence, equivalent #Source and target languages, target-language text. The English la ...

of ''bò lúc lắc'' and what ''lúc lắc'' is referring to. In the

Vietnamese language Vietnamese () is an Austroasiatic languages, Austroasiatic language Speech, spoken primarily in Vietnam where it is the official language. It belongs to the Vietic languages, Vietic subgroup of the Austroasiatic language family. Vietnamese is s ...

, ''bò'' means “beef” and ''lúc lắc'' means “shaken” or “shaking”. ''Lúc lắc'' could describe the constant shaking of the wok that’s needed to get every individual steak cube evenly seared on all sides, while keeping them nice and juicy on the inside. Alternatively, it can be a reference to the motion of the beef cubes themselves. These diced pieces of meat are essentially “shaking” (moving back and forth) as they are tossed in the wok.

Popularity

Shaking beef is now quite popular in the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. Over the years, shaking beef had also spread to neighboring

Cambodia Cambodia, officially the Kingdom of Cambodia, is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. It is bordered by Thailand to the northwest, Laos to the north, and Vietnam to the east, and has a coastline ...

, where it is known as ''lok lak'' or ''loc lac'' (), which are

loanwords A loanword (also a loan word, loan-word) is a word at least partly assimilated from one language (the donor language) into another language (the recipient or target language), through the process of borrowing. Borrowing is a metaphorical term t ...

from Vietnamese ''lúc lắc''. The dish is now so widely enjoyed in Cambodia that it has come to be considered one of the country’s

national dishes A national dish is a culinary dish that is strongly associated with a particular country. A dish can be considered a national dish for a variety of reasons: * It is a staple food, made from a selection of locally available foodstuffs that can be ...

. The initial Cambodian version of shaking beef consisted of high-quality steak cut into pieces and pan-

seared Searing or pan searing is a technique used in grilling, baking, braising, roasting, sautéing, and the like, in which the surface of the food (usually meat such as beef, poultry, pork, or seafood) is cooked at high temperature until a browned c ...

in French

butter Butter is a dairy product made from the fat and protein components of Churning (butter), churned cream. It is a semi-solid emulsion at room temperature, consisting of approximately 81% butterfat. It is used at room temperature as a spread (food ...

, which stems from

Indochina Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...

's French colonial past. Later, a simpler version influenced by Chinese culinary techniques emerged using cheaper cuts of beef and Chinese oyster sauce. The beef used in this version, which is the one generally eaten in Cambodia today, is cut into strips and not small cubes as is done in Vietnam.

References

{{Cambodian cuisine Vietnamese beef dishes Cambodian cuisine French fusion cuisine