Chicken And Dumplings

1. Halve chicken legs, separating thigh from drumstick; season with salt and pepper; set aside. Put remaining chicken into a pot; cover with salted water; boil. Reduce heat; simmer until breast is just cooked, 12-15 minutes. Remove chicken. Cut breast and wings from carcass. Discard any skin and bones from breast and wing meat; cut into 1" chunks; chill. Return carcass to pot; simmer for 1 hour. Strain; reserve 4 cups broth (save remainder for another use).
2. Meanwhile, cook bacon in a large wide pot over medium heat until crisp, 8-10 minutes. Transfer bacon to a plate; leave fat in pot. Add and heat oil; brown drumsticks and thighs, 8-10 minutes. Transfer to a plate. Add thyme, garlic, carrots, celery, onions, and bay leaf; cook until light brown, 18-20 minutes. Add 2/3 cup flour; cook for 1 minute. Add wine; cook for 1 minute. Whisk in reserved broth and salt and pepper to taste. Nestle in drumsticks, thighs, and bacon. Reduce heat to medium-low and simmer, covered, for 15 minutes.
3. Whisk together remaining flour, baking powder, baking soda, 11/2 tsp. salt, and 1/4 tsp. pepper in a bowl. Combine butter, buttermilk, and parsley in a second bowl; pour into flour mixture; stir to make a thick batter. Uncover pot; add breast and wing meat. Drop batter in 8 large spoonfuls over the top. Simmer, covered, until dumpings are cooked, 20-25 minutes.