Red Onion Borscht - cooking recipe

Ingredients

2 tablespoons butter
4 large red onions, thinly sliced
2 medium beets, peeled and shredded
1/2 cup red wine vinegar
2 1/2 tablespoons flour
6 cups chicken broth
1/3 cup port wine
salt & freshly ground black pepper
sour cream (optional)
chopped fresh chives (optional)

Preparation

Melt butter in a large pot, add onions, beets and vinegar.
Cook vegetables over low heat, 25-30 minutes or until soft.
Add flour, cook and stir 1-2 minutes until flour is incorporated.
Remove pot from heat, gradually add broth while stirring.
Return pot to stove, increase heat to medium high and bring to a boil.
Reduce heat, simmer 10 minutes, add port and season with salt and pepper.
Ladle into soup bowls and top with sour cream and chives.