Heat oven to 450. Spray 2 jellyroll pans w/ cooking spray. In lg bowl, combine bread & milk. Let stand 5 mins. Stir in turkey, egg, worcestershire sauce, garlic, italian seasonings, salt and pepper.
using about 2 tbsp of mix, shape into 32 balls. using a finger, make a hole in each meatball. Insert an olive into each meatball, shaping meat around olive, press to seal. Place meatballs in pans, bake 10-12 min, or until heated almost all the way through.
Heat broiler. Broil meatballs 8" from heat, until browned and no longer pink inside, about 5 mins. In saucepan, Combine broth, marinara sauce, vinegar and cookies. Bring to boil, reduce heat to low and simmer until cookies are dissolved and sauce is thickened. Toss meatballs w/ sauce. Serve warm.