Green Peas Skin Soup

1 tablespoon green peas
6 cups skin of green peas
1 chopped onion
3 teacups skim milk
2 teaspoons butter
salt and pepper to taste

Heat the butter and fry the onion for 1 minute. Add the green peas skin and green peas and cook for 3 to 4 minutes. Add the milk and ½ teacup of water and cook in a pressure cooker till the first whistle.

Blend in a mixer. Strain to separate the stock from the skin. Discard the skin. Boil the stock for 1 minute. Add salt and pepper.