Heat a little oil in a large saucepan and fry the meat vigorously in portions. Set aside and keep warm.
Fry the onions briefly and deglaze with the stock. Add the meat again and simmer everything for about 2 hours, stirring occasionally, until the onions have completely disintegrated. If necessary, add more stock. Season to taste with salt, pepper, paprika and chili powder.
This goes well with ribbon noodles, potatoes or simply white bread.