Peel and wash the potatoes, possibly cut in half and cook for about 10 minutes in boiling salted water. In the meantime peel onions and cut into slices. Wash and chop the thyme. Heat lard in a large pan.
Fry the potatoes and onion slices for 3 minutes at high heat. Add the minced meat and fry for another 10 minutes. Season with salt, paprika and aiwar. Add 200 ml water, bring to the boil briefly.
Stir in the crème fraiche. Serve sprinkled with thyme.