Duck with Pecan Pipián

Ground nuts or seeds are the singular ingredient in the sauces known as pipiáns, which are sort of like Southwestern pestos. Peanuts, native to South America, were first used, as were pumpkin seeds, but regionally, cooks would incorporate what was available—in the American Southwest, for instance, it could be pine nuts or pecans, or wild hickory nuts in other parts of the country. The richness of the duck is perfectly complemented by this rich, complex sauce that I created to use New Mexico pecans, a wonderful local crop. It’s very versatile, a great condiment for grilled satay skewers or as a sandwich spread or a party dip. It’s much easier to prepare than it sounds—a whirl in a blender, then a quick turn in a skillet to marry the flavors.