Duck fat, which is something of a well-kept (and wildly delicious) secret on this side of the Atlantic, is a common pantry staple in the Dordogne. Here, it enhances the earthy flavor of skillet-fried potatoes and gives them a gorgeous silkiness and golden-crisp edges. Showered with garlic and parsley, this is the type of rustic French side dish that everyone loves.
Périgord is as famous for its walnut trees as it is for its black truffles. In this rich tart, a substantial, buttery crust cradles a chewy, candylike caramel filling bursting with deep, nuanced flavor.
