Haricots Panachés

Haricots panachés (green beans and flageolets bound with butter) teaches one clean rule: cook the two beans apart. Haricots verts want brisk salted water and a quick stop while they still answer the tooth; flageolets want gentle heat so their pale skins stay whole. Force them through one cooking and one will always pay for the other.

The classical formula assumed a vegetable station with both beans already cooked, drained, and waiting for service, plus enough hands to finish a large batch at the last moment. Your home equivalent is one saucepan used twice, one wide skillet, and four servings measured at equal prepared weight. What changed is the brigade scaffolding and the scale, not the proportion or the liaison au beurre, the butter binding that makes the two vegetables arrive as one dish. One cook, one stove, one evening.

The finished beans should glisten without sitting in a greasy puddle, the haricots verts bright and supple, the flageolets creamy but intact. The step that decides the dish is the separate cooking: stop each bean at its proper tenderness, dry both well, and combine them only for the buttery finish.