Les zéphyrs de pommes de terre

• 1½ pounds (675 g) boiling potatoes
• 16 tablespoons (225

Wash the potatoes, prick them all over with a fork, set them in a shallow ovenproof dish, and bake at 450°F (230°C) for 30 to 40 minutes, or until they are very tender. Spread the sides of the molds evenly with butter, and line the bott