Kale Potato Soup

1 large bunch kale, chopped
1 tablespoon butter
1 large onion, chopped
1 clove garlic, minced
2 large potatoes, diced
5 cups hot water or broth
Salt and pepper to taste

   Steam kale and set aside. Sauté onion in butter in soup pot until golden. Add garlic and sauté 1 minute. Add potatoes and 2 cups water or broth. Bring to boil, then simmer till potatoes are soft. Remove half of cooked potatoes; purée the rest with cooking liquid and return to pot. Add rest of potatoes, steamed kale, 3 cups water or broth, and salt and pepper, along with milk to preferred consistency. Heat gently till hot and serve.

—from Simply in Season Cookbook