10 medium potatoes, peeled and cubed
1 can tomato paste
4 to 5 tblsp. flour
3 tblsp.sour cream
Milk
Salt to taste
 

From Leona's Kitchen

Cover potatoes with water. 
Add a little salt and boil until tender.
Dilute tomato paste with a little water and add to potatoes. 
Mix in a small bowl or cup, flour and just enough milk to form a paste. 
Stir until smooth. 
Add sour cream; stir until blended, then add more milk.
Stir and pour into soup. 
Simmer for 20 minutes.