Boil brine ingredients, except ice water in large pot, cool. Brine thawed, turkey breast (breast meat down) with ice water overnight in refrigerator. Discard brine and marinate turkey breast in jerk seasoning, soy sauce and garlic. Preheat oven to 450°F. Roast turkey breast, breast meat up, for 30 minutes, then set oven to 350°F. Cover with foil. Roast for 1 hour and 30 minutes or until internal temperature is 165°F.