Tourte de Pommes de Terre à l’Ail

• 400 g/14 oz puff pastry
• flour, for dusting
• 500 g

Preheat the oven to 200°C/400°F/gas 6. On a lightly floured surface, roll out three-quarters of the pastry and use it to line a gratin dish.

Put the potatoes, garlic, parsley and seasoning in a bowl, mix well, then place in the gratin dish. Roll out the rest of the pastry and p