Trim excess fat from the lamb. Place meat in non-aluminum container or large zip-top plastic bag. In a medium bowl, whisk together the chopped mint, lemon juice, orange juice, garlic, coriander, paprika, cumin, black pepper, nutmeg, cayenne and olive oil and pour over the meat, rubbing it in. Cover and refrigerate at least 2 hours or overnight.
To make the Mint-Basil Yogurt: In a small bowl, whisk together mint, basil, yogurt, cardamom and honey and season to taste. Set aside.
To cook, bring lamb to room temperature, if refrigerated. Start a charcoal or wood fire or preheat a gas grill or broiler. Remove lamb from marinade and grill or broil on both sides, until meat is nicely browned (or charred), about 20 to 30 minutes, and the internal temperature at the thickest part is about 125 degrees. Let rest before slicing thinly. Serve with the Mint-Basil Yogurt on the side.
Nutrition information per serving:
Calories454Fat23 gSodium145 mg
Carbohydrates8 gSaturated fat7 gCalcium92 mg