Ingredients

  • 2 teaspoons mustard seeds
  • 1 1/2 teaspoons cumin seeds
  • Two 1 1/2-pound racks of lamb, chine bone removed and bones frenched
  • Salt and freshly ground pepper
  • 5 cups arugula leaves (3 ounces)
  • 2 garlic cloves, quartered
  • 2 tablespoons fresh lemon juice
  • 1/2 cup extra-virgin olive oil
  • 1/4 cup freshly grated Parmesan cheese

Method

  • Light a grill.
  • In a small skillet, toast the mustard and cumin seeds over moderately high heat until fragrant, about 1 minute.
  • Let cool, then transfer the seeds to a mortar or spice grinder and grind to a powder.
  • Rub the spices all over the lamb and season with salt and pepper.
  • Grill the lamb over moderately high heat, turning and rotating the racks occasionally, until lightly charred outside and medium-rare within, about 30 minutes total.
  • Transfer the lamb to a carving board and let rest for 10 minutes.
  • Meanwhile, in a food processor, puree the arugula with the garlic, lemon juice and olive oil.
  • Add the cheese and season the pesto with salt and pepper.
  • Carve the lamb racks into individual chops and transfer to plates.
  • Serve the arugula pesto alongside.