Cut the beef into cubes of the same size and brown in hot clarified butter for about 10 minutes.
In the meantime, peel the onion, cut it into small pieces, add to the meat and fry briefly. Sprinkle paprika over the beef, fry briefly and immediately deglaze with vegetables or beef stock. If you fry paprika too long, it tastes bitter. Season with salt, pepper and Tschubritza. Cover and simmer for about 80 minutes over a mild heat.
In the meantime, wash, scrape and slice the carrots. Halve the bell pepper, remove the white seeds and skin and cut into small pieces. Peel, wash and dice the potatoes. Clean the leek and cut into fine rings. Finely chop the chilli pepper and garlic.
Put a saucepan with water on it. Slightly scratch the tomatoes crosswise with a sharp knife on the top and soak in boiling water for a short time, about 1 minute. Pour into a sieve and rinse with cold water. Immediately afterwards peel off the tomato skin. Quarter, core and finely chop tomatoes.
About 30 minutes before the end of the cooking time, add the cut vegetables (without tomatoes) to the beef and stir in. After another 15 minutes, add the tomato pieces and let the whole thing simmer. Season again with the specified spices.