[Photographs: Elizabeth Barbone] I think of tarts the same way I think of sandwiches: you can fill them with almost anything and they taste great. And just as a good sandwich requires good bread, a tart needs a good crust....
Using the cilantro stems for the base of the sauce (instead of throwing them in the trash) is a flavorful way to stretch a buck or two. If you can't find skin-on boneless chicken thighs, purchase bone-in and bone them yourself or have the butcher do so.