Ingredients

1 large chopped onion 

6 chopped carrots 

1/2 head chopped celery 

1 halved head garlic 

2 chopped large sweet potatoes 

12 cups water 

4 cups spinach 

1 bunch fresh parsley 

Coarse salt and freshly ground black pepper 

Preparation

In a large pot, cover onion, carrots, celery, garlic, and sweet potatoes with water and bring to a boil. Reduce heat and simmer 20 minutes. Add spinach and parsley and simmer 5 minutes more. Season with salt and pepper. Strain liquid; discard vegetables.