Mayonnaise (/ˈmeɪəneɪz/, /ˌmeɪəˈneɪz/ or in AmE also /ˈmæneɪz/, and often abbreviated as mayo /ˈmeɪoʊ/) is a thick, creamy dressing often used as a condiment.[1] It is a stable emulsion of oil, egg yolk, and either vinegar or lemon juice,[2] with many options for embellishment with other herbs and spices. Proteins and lecithin in the egg yolk serve as emulsifiers in both mayonnaise and hollandaise sauce.[3] Commercial egg-free alternatives are available for vegans and others who want to avoid animal products and cholesterol, or who are allergic to eggs.[4]

Mayonnaise varies in color, but is often white, cream, or pale yellow. It may

range in texture from that of light cream to a thick gel. In countries influenced

by French culture, mustard is also a common ingredient, but the addition of

mustard turns the sauce into a remoulade with a different flavor and the

mustard acts as an additional emulsifier.[5][6]