Lobster sauce is a type of sauce used in American-Chinese and Canadian-Chinese cuisine. It is also sometimes found in Polynesian-influenced Chinese food. It is a type of "white sauce" within Chinese cooking, meaning that it is of a mild flavour, and based on meat stock, as opposed to soy sauce.
The sauce itself does not contain any lobster, and may vary in preparation method from place to place or restaurant to restaurant. It can contain chicken broth, garlic, ginger, green onions, fermented black beans, and eggs, and is thickened with starch. Some recipes incorporate pork mince and soy sauce. The colour varies from being pale white to brown, or to a yellow, depending on the quantity of soy sauce used and how the eggs are incorporated into the sauce. Lobster sauce in most of New England, where it is a thicker, brown sauce, is the exception.