In a bowl, blend 1 cup low fat cottage cheese, 2 tablespoons vegetable oil, 1 tablespoon water, 1 tablespoon cider vinegar, 1 teaspoon dry mustard, 1 to 2 teaspoons paprika and a dash of pepper. Occasionally stop to scrape the side with a rubber spatula and then with extra water if necessary. Blend until smooth. For a Russian dressing add a tablespoon of ketchup.