Which of the following sauces does not typically contain tomatoes?

Béarnaise sauce is a classic French sauce that is made primarily from clarified butter, egg yolks, white wine vinegar, and flavored with herbs such as tarragon and chervil. The preparation of Béarnaise does not include tomatoes, which distinguishes it from some other sauces. This sauce is a variation of hollandaise and is known for its rich, buttery texture and herbal flavor profile.

In contrast, other sauces listed often include tomatoes or tomato-based components. For instance, Chasseur sauce (often referred to as "Hunter's sauce") typically combines white wine, mushrooms, and shallots, sometimes with a tomato flavor element. Choron sauce is a derivative of Béarnaise but includes tomato purée, which introduces tomatoes to the mix. Milanese sauce is based on a tomato foundation, usually incorporating ingredients like onions, garlic, and herbs.

Thus, Béarnaise stands out as the sauce that does not include tomatoes, emphasizing its unique composition and preparation method.