Beef tail soup

Beef tail (chopped into pieces) -  2 pound, carrots - 3 pcs., parsnip - 1 pc., celery (root) – 2 pcs., onions - 2 pcs., bay leaf - 1 pc., salt - 1 Tbsp., chili pepper – ¼ teaspoon; water – 57 fl oz; soy sauce – ½  Tbsp., tomato paste - 2 Tbsp., flour - 2 Tbsp., leek - 1 pc., potatoes - 2 pcs., butter – 2 teaspoon.

via newsforwoman.com