Serve this creamy spinach soup piping hot, with a fresh buttered baguette. Delicious! You can make a vegetarian version by using vegetable stock in place of the chicken stock. Also, you can add a dash of paprika, cayenne, or red pepper flakes if you like more spice. Note: I used a 32 oz. box of organic chicken stock, and we thought it was fine that way (we like ours with plenty of broth). But the three cups of chicken stock that the recipe calls for should work nicely if you like a thick soup, or are going to blend it. I don't have an immersion blender, but feel free to blend this soup if you prefer a smooth version.