01 -
Preheat the oven to 390°F (200°C).
02 -
Cut the potatoes in half lengthwise, then into large chunks or wedges.
03 -
Wash potatoes in cold water and soak for 10 minutes while swirling. Repeat until water runs clear.
04 -
Place potatoes in a saucepan, cover with cold water, add salt, rosemary sprigs, thyme, and whole garlic cloves. Bring to boil and cook 7–10 minutes until fork-tender.
05 -
Drain and discard aromatics. Rough the potatoes in a colander and cover with a tea towel to steam for 15 minutes.
06 -
Place duck fat and olive oil in a baking dish and heat in oven until very hot.
07 -
Carefully add potatoes to hot fat, stir to coat, and roast for 45 minutes, basting every 15 minutes.
08 -
Add crushed garlic and chopped rosemary to hot potatoes. Stir and allow to cook slightly in the oil before serving.