Definition of Béarnaise sauce in US English:

Béarnaise sauce

noun

  • A rich sauce thickened with egg yolks and flavored with tarragon.

    • ‘‘Yeah,’ I shot back, ‘and I like my mice with a nice Béarnaise sauce.’’
    • ‘I grew up on steak, chips, Béarnaise sauce and garlic mushrooms served at steak-houses.’
    • ‘It is a constituent of fines herbes, and is often used with tarragon, in Béarnaise sauce, for instance.’
    • ‘It's like slathering a Big Mac with Béarnaise sauce and pretending it's filet mignon.’
    • ‘You want the juices to run when you cut into it, staining your chips, mixing up with your Béarnaise sauce and getting your own juices flowing at the same time.’

Origin

Béarnaise, feminine of French béarnais ‘of Béarn’, a region of SW France.

Pronunciation

Béarnaise sauce

/ˌbeɪrˈneɪz ˌsɔs//ˌbārˈnāz ˌsôs/