Broken Butter Sauces

These sauces are prepared by cooking butter until it breaks, then flavoring it with an acidic ingredient such as lemon juice or wine vinegar. Broken butter sauces are less popular than they used to be, yet there are preparations for which no other kind of sauce will do: sole (or other fish) meunière, sauce grenobloise (with broken butter, capers, and lemon), and skate with brown butter (the butter is cooked slightly beyond the noisette stage) are a few examples.