Moo's Chicken Ginger Coriander Soup

8 cups chicken stock
6 slices fresh ginger
5 stalks fresh lemon grass
1 bunch coriander
Fresh, raw dark meat of chicken (legs and thighs)
Fresh spinach, chopped
Japanese Udon noodles or Chinese noodles
Fresh mushrooms
Salt and fresh ground pepper to taste

Suggested garnishes: scallions, chopped tofu, chopped hard-boiled eggs, coriander leaves, lime slices, fresh bean sprouts

To chicken stock, add ginger, lemon grass and coriander. Bring to a boil, then simmer for 30 minutes in order for flavors to merge. Remove ginger, lemon grass and coriander. Add chicken (still on bones) to the flavored broth. Once cooked, remove chicken. Cool enough to debone and chop into bite-size pieces. Now prepare soup: To flavored broth, add chopped chicken, fresh spinach, noodles and mushrooms. Simmer until noodles and vegetables are tender. Salt and pepper to taste. Prepare separate bowls for garnishes. Serve soup and invite diners to garnish soup to their taste.