In a large bowl grate 9 potatoes. Remove starch with a strainer. Grate 1 large onion in small bowl. Grate a 10th potato over the onions and stir potato mixture. Sift 1/2 cup flour over potato mixture. Add salt for taste. Stir together. Grease frying pan and heat. With a tablespoon, spoon batter into the skillet until you get nice sized pancakes. Fry until crisp.