Mint-Glazed Leg of Lamb

For Mint Glaze: Place jelly, wine, mustard and pepper in small food processor or blender; cover. Process until smooth. For Lamb: Preheat oven to 425°F (220°C). Cut slits all over lamb with tip of sharp knife; insert garlic slivers. Season with salt and pepper. Place lamb in shallow roasting pan. Bake uncovered, on center rack for 1 hour. Remove from oven; reduce temperature to 375°F (190°C). Brush about 1/2 cup Mint Glaze over lamb; return to oven and bake an additional 40 to 45 minutes. Remove from oven; insert instant-read meat thermometer into the thickest part of meat (temperature should read 155° F. for medium.) Brush remaining glaze over lamb. Loosely cover; let stand for 15 minutes before carving. Place lamb on serving platter; garnish with fresh mint.