Carrot Pie with Apple and Goat Cheese

• 8 carrots, peeled
• 1 sheet frozen puff pastry, thawed
• 1 onion, halved lengthwise and

Boil the carrots in salted water for 8 minutes, until just tender. Drain and rinse under cold running water. Halve them lengthwise and set them aside.

Grease a 9-inch (24-cm) tart pan with a remova