Pistachio-Crusted Rack of Lamb

Step 1
Preheat the oven to 400 degrees F (200 degrees C). Line a baking sheet with aluminum foil.

Step 2
Generously season each rack of lamb with herbes de Provence, salt, and pepper.

Step 3
Heat vegetable oil in a large skillet over high heat. Place lamb into the skillet and cook until browned on all sides, 6 to 8 minutes. Transfer to the prepared baking sheet.

Step 4
Stir pistachios, bread crumbs, melted butter, and olive oil together in a small bowl; season with salt and pepper. Spread mustard over the fatty side of lamb, then press pistachio mixture into mustard.

Step 5
Bake in the preheated oven until crust is golden and lamb is pink in the center, 20 to 25 minutes. An instant-read thermometer inserted into the center should read at least 130 degrees F (54 degrees C) for medium doneness.

Step 6
Transfer lamb to a plate and let rest for 10 minutes before slicing.