Cut the meat into strips. Heat the lard or oil in the pan, fry the meat in portions over high heat, set aside. Then cut the onions, peppers and pickles into fine strips and lightly brown them in the frying fat, then finely chop or press the garlic cloves and mix in. Deglaze with meat stock and red wine, add sweet paprika, season with salt, pepper, cayenne pepper and sugar. Stir in the tomato paste and bring to the boil vigorously. Then mix in the corn and add the meat again. Let it simmer for about 25 minutes. Finally, the sour cream is stirred underneath or poured onto the individual plates as a blob.