Potato Soup - 4 Points Recipe Source: Unknown 4 cups potatoes -- thinly sliced 1 medium onion -- diced 3 tablespoons butter 1 1/2 cups potato water 1 1/2 cups evaporated skim milk 1 teaspoon salt 4 teaspoons minced parsley -- optional chopped chives -- optional Peel, wash and slice potatoes and add onions and enough water to just cover. Cook covered for 15 minutes. Drain and reserve 1 1/2 cups of potato water. Mash potatoes, add butter, water milk and salt. Heat very well. If desired top each serving with a teaspoon of minced parsley or chopped chives