Potage Parmentier

6 c. water 1 (No.2) can tomatoes
4 lg. potatoes, peeled
Butter
3 lg. leeks, washed and chopped
Seasonings to taste

Cook potatoes in salted water until they fall apart. Saute leeks in butter until soft but not brown. In another pan simmer tomatoes, broken up, and liquid. Add leeks and tomatoes to potatoes and simmer half an hour. Season to taste.