Cucumber and Vegetable Marrow (Concombres et Courgettes)

Concombres et courgettes teach one clean principle: vegetables carrying this much water must be cooked in stages. One true thing before you touch a pan: wet vegetables cannot glaze. Shape them evenly, parboil them only until nearly tender, dry them without mercy, then finish them gently in butter.

The source entry assumed a grand kitchen with a garnish cook performing tournage, the knife-work that turns dozens of vegetables into identical ovals, and pans of salted water always ready. At home, elaborate tournage is brigade scaffolding, so regular batons take its place and one saucepan serves both vegetables in sequence. What stays is the dish itself: even shaping, brief parboiling, careful draining, and real butter. Equal trimmed weights make four generous portions for one cook, one stove, one evening.

Watch the parboil above all. Each piece should bend slightly while retaining a firm heart; once it slumps, no skillet can restore its shape. Lift it into cold water at the first sign of softness, then shorten the butter finish. The final dish should glisten, not swim.