Clean the kidneys, cut into pieces of about the same size and soak for several hours, changing the water more often.
Pour into a sieve, drain well and then dust with flour.
In a saucepan, fry the finely chopped onions and diced bacon in a little oil. Add the diced bell pepper, finely chopped garlic and chilli pepper and tomato paste. Then add the kidneys to the pan and fry for another 5 minutes. Deglaze with red wine and reduce the liquid a little. Then a shot of water (also meat broth) and the spices and let simmer for about 20 minutes on a low flame. I cook the spices in a tea bag or tea egg so that they are easier to “fish out” afterwards.
Mashed potatoes, bread dumplings or spaetzle are enough as a side dish.