Pistachio-Crusted Duck Breasts with Black Cherry Mole and Pistachio Tortillas

In this modern Mexican riff on the traditional pairing of duck and cherries, the duck breasts are coated with a pistachio crust that is echoed in the pistachios in the cherry mole. Developing this recipe was special to me, and I had many versions to choose from. I decided to add the pistachio crust as it is a classic, and my coauthor, Andréa Lawson Gray, has been making this black cherry mole for years. It made perfect sense for us to collaborate on this recipe. As mole is time-consuming to