Potato and watercress soup recipe

Ingredients to make watercress and potato soup:

• 2 bunches of watercress
• 1 large potato, peeled and diced
• 1 large onion, peeled and chopped
• Salt
• 25 grams butter or margarine
• 600 ths. of chicken broth
• 300 ths. milk
• freshly ground black pepper

How to make watercress and potato soup:

1. Wash the watercress very well, remove the tough stems, and drain.
2. Melt the fat in a large saucepan, add the onion and potato and cook slowly for about 5 minutes or until they begin to soften.
3. Stirring, add half of the watercress, the broth and the milk.
4. Add salt and pepper and bring to a boil.
5. Cover and cook over low heat for 20 minutes.
6. Blend the soup to puree it or pass it through a food mill, and pour it back into the saucepan.
7. Finely chop the rest of the watercress and, stirring, add to the soup.