Preheat oven to 500 F.
Season turkey liberally on both sides with salt and pepper; let sit at room temperature 1 hour in large roasting pan with roasting rack.
To make glaze: In medium saucepan over high heat, combine honey, orange juice, mustard, vinegar, salt, pepper, thyme and garlic.
Bring to boil then reduce heat to medium and simmer 15 minutes, or until reduced by two-thirds.
Remove from heat and set aside.
Place roasting pan in center of oven and reduce temperature to 350 F.
After 45 minutes, brush on layer of glaze. Cook 10 minutes.
Brush on another layer of glaze. Cook 10 minutes.
Brush on one more layer of glaze, cooking until internal temperature of turkey registers 165 F.
Remove from oven and let rest 30 minutes.
Cut meat from bone, slice and drizzle with remaining glaze before serving.
