Potato Soup - cooking recipe

Ingredients

3 c. diced raw potatoes
1/2 c. finely chopped celery
1/2 c. finely chopped onion
3 c. water
2 c. milk (scalded)
2 chicken bouillon cubes
3 Tbsp. butter
1 c. sour cream
1 Tbsp. flour
salt and pepper to taste
1 c. diced ham (optional)

Preparation

Cook potatoes, celery and onion with the water in a covered pan until tender.
Do not drain.
Add milk, bouillon cubes and butter.
Mix sour cream with flour until smooth.
Add to soup and cook it until thick, stirring constantly.
Add salt and pepper. Add ham, if desired.