Melt one stick butter in soup kettle. Saute 3 peeled, cubed cucumbers. In the meantime, peel and chop 2 potatoes. Chop 3 medium onions. Add to cucumber mixture, 1 quart of chicken broth or 4 bouillon cubes and 4 cups water. Add chopped potatoes and onions. Bring to a boil and simmer for 20 minutes or until tender, stirring occasionally. Serve hot or cold and salt lightly to taste. You may add cubed ham or bacon.