3 pounds baby or small potatoes, halved if large
1/4 cup duck (or chicken) fat, melted
2 1/2 teaspoons kosher salt, plus more to taste
1/2 teaspoon ground black pepper
6 thyme sprigs
1 bay leaf, torn into pieces
6 garlic cloves, smashed and peeled
Heat oven to 450 degrees. On a rimmed baking sheet, toss together the potatoes, duck fat, salt and pepper. Lay thyme sprigs and bay leaves on top.
Roast for 30 minutes, then toss the garlic into the potatoes and reduce oven heat to 350 degrees. Continue to roast until potatoes are fork-tender, another 15 to 25 minutes. Remove thyme and bay leaves and serve, or let cool for up to an hour then reheat, uncovered, at 350 degrees just before serving.