Prepare the Stock:
Place chicken thighs in a large pot (about 3.5 quarts). Season generously with salt and add parsley sprigs on top.
Pour in enough water to fully cover the chicken. Bring to a boil, then reduce heat to low. Cover and simmer for 2 hours.
Strain and Shred the Chicken:
Remove chicken from the pot and transfer to a bowl.
Strain the broth through a fine sieve into a clean bowl, discarding the parsley. Wipe out the pot for reuse.
Remove the chicken skin and discard. Shred the meat off the bones into bite-sized pieces. Add shredded chicken back into the strained broth.
Start the Soup:
Heat olive oil in the cleaned pot over medium heat. Sauté the onion and celery for about 5 minutes, until softened.
Season with seasoning salt of choice, adjusting to taste.
Simmer the Soup:
Stir in the pearl couscous and cook for 2 minutes to lightly toast.
Pour in the prepared chicken stock with shredded chicken. Bring to a boil, then reduce heat to a gentle simmer. Cook uncovered for 15 minutes, or until the couscous is tender. Taste and adjust salt and pepper.
Finish the Soup:
Stir in the fresh dill and lemon juice. Let simmer for 5 more minutes.
Serve:
Ladle soup into bowls. Garnish with extra dill, a drizzle of extra virgin olive oil, and dukkah or crackers for crunch.
Serve warm and enjoy the comforting flavors!