1 cup fresh mint leaves, coarsely chopped
1/2 cup golden raisins, plumped in hot water for at least 10 minutes and drained
1/2 cup pine nuts, toasted
2 to 3 cloves garlic, minced (about 2 tsp.)
Finely grated zest of 1 lemon
1-1/2 tsp. fresh lemon juice
1/4 cup plus 2 Tbs. extra-virgin olive oil
Kosher salt and freshly ground black pepper
3 racks of lamb (8 ribs and 1 to 1-1/2 lb. each), frenched and at room temperature
In a small bowl, combine the mint, raisins, pine nuts, garlic, lemon zest, and lemon juice. Stir in 1/4 cup of the olive oil and season to taste with salt and pepper.
Heat the oven to 350°F. Season the lamb well on all sides with salt and pepper. Heat the remaining 2 Tbs. of olive oil in a large, heavy skillet over medium-high heat until very hot. Working in batches if necessary, sear the lamb racks on all sides until well browned, about 5 minutes per batch. Put the browned racks bone side down on a heavy-duty rimmed baking sheet and roast until an instant-read thermometer inserted in the thickest part of the meat reads 125° to 130°F for rare to medium rare, 20 to 25 minutes, or 135° to 140°F for medium rare to medium, 25 to 30 minutes. Let the lamb rest for 10 to 15 minutes before slicing it into chops.
Serve the chops on the same plate as the cucumber, fennel, and roasted potato salad with some of the mint relish spooned around the meat.