Cut the beef into large chunks and set aside, cut the onions put them in a pan with butter and fried them for 1 min, add the paprika, and fried for 2 min more.
Add the beef and add salt (this step is really important) add the skin of the lime and cover and let it cook for over 2 hours in medium temp.
Thanks to the salt, the beef will release their on juice, and you will not need to add water at all, it is important you cooked longer in medium temperature, stirring time to time.
Cook it till the onions disappear, and the beef is soft, and that’s it!
The best way to accompany this delicious dish is of course with Spaetzel, a kind of soft egg noodle found in the cuisines of Germany, Austria, Switzerland, Hungary… But gnocchi is also fine.