PRINT Author: Alice Waters The flavor of mushrooms is more pronounced if they have begun to color. Serves: 4 INGREDIENTS 1/2 pound, mature mushrooms with stems 2 tablespoons, unsalted butter 2 cups, chicken stock or broth 1/2 cup, tender celery – chopped 1/4 cup, onion – sliced 1/8 cup, parsley – shredded 1 cup, Bechamel…