Turkey soup usually starts out with remnants of the holiday bird, resulting in a bland soup with little turkey flavor. Recipe from Cooks Illustrated. The Goal: A soup with rich turkey flavor that's made without an all-day simmer. The Solution: Make a classic stock with carrots, onions, celery, and garlic, and enhance the flavor with white wine, which deepens the turkey flavor. After just four hours the stock is fully flavored, ready for additions like noodles, potatoes, or rice, and of course, turkey. Try not to use a barren carcass for the stock. The soup tastes best made with a carcass that has a good amount of meat clinging to it.