What is béarnaise?
Béarnaise · French
French butter sauce, a cousin of hollandaise, flavored with tarragon, shallot and vinegar.
What it tastes like
Rich and buttery with a tangy, licorice-y lift from tarragon. Thick, warm and spoonable.
Where you’ll see it
With steak frites, filet mignon and steakhouse sides, and sometimes on eggs or burgers.