Instructions

  1. Heat oil and butter in a large pot over medium heat; add in onion, celery, garlic and thyme; cook stirring for about 4 minutes.
  2. Add in 8 cups chicken stock with diced potatoes; bring to a boil, reduce heat and simmer until the potates are tender (about 15-20 minutes).
  3. Using a potato masher mash the potatoes in the the stock.
  4. Add in sliced carrots, spinach (if using) and cooked chicken; bring to a boil, reduce heat cover and simmer for about 30 minutes over low heat.
  5. Season with salt, pepper and cayenne (if using) to taste.
  6. In a small bowl combine 1/4 cup room temperature or cold stock with flour until smooth; add into the simmering broth and cook until thickened (about 5 minutes).
  7. Ladle into serving bowls and sprinkle with grated parmesan cheese if desired.