Peel and chop the onion and garlic. For the rice boil 1/2 l salted water. Heat the oil in a pot. Fry the ground pork in it until crumbly. Season with cumin and possibly salt and pepper, take out.
Sauté onion and garlic in the frying fat. Sweat tomato paste briefly. Add tomatoes, juice and stock. Bring to the boil, cover and simmer for 8-10 minutes. Place rice cook bag in boiling water and cook according to package instructions.
Wash the parsley and shake dry. Cut into strips. Add half of the sour cream to the soup, puree finely. Season to taste with salt, pepper and sugar.
Heat the ground pork in the soup. Drain the cooking bag, open. Add rice to the soup, arrange. Stir the rest of the sour cream into streaks and sprinkle with parsley.