Fresh Green Bean Soup - cooking recipe

Ingredients

1 1/2 lb. green beans
1 small onion, diced
salt and pepper to taste
4 medium potatoes, peeled and cubed
1/4 lb. butter
6 Tbsp. flour
1/2 pt. sour cream
3 c. cold water

Preparation

Clean and cut beans into 1 inch lengths.
Wash thoroughly. Cook beans and onion in water until beans are tender.
Add potatoes and cook 20 minutes.
Melt butter in skillet; add flour and cook until browned.
Pour into soup.
Cook on medium for 5 minutes.
Mix sour cream with 1 cup cold water until milk-like. Set aside.
Remove soup from heat.
Let cool 1/2 hour.
Pour sour cream mixture slowly into soup, stirring constantly.
Add 2 to 3 tablespoons white vinegar to soup.
Return to heat.
Bring soup to a boil and remove from heat.
Serve hot.