Summary

Ingredients

• 500 g kidney (s)
• milk
• 30 g fat
• 1 onion (s)
• 1 tablespoon flour
• 125 ml water or other liquid
• 4 tablespoon sour cream
• Vinegar (wine vinegar)
• 1 pinch (s) sugar
• salt and pepper

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Instructions

1. Wash and peel the kidneys, cut into strips, wash again, then soak in milk for 20-30 minutes.
2. Chop the onion.
3. Heat the fat in a large pot over medium heat.
4. Add the chopped onion and cook, stirring occasionally, until translucent, about 5 minutes.
5. Add the kidney strips and stew over medium heat, stirring occasionally, until they are no longer red, about 10 minutes.
6. Sprinkle the flour over the kidneys and stir continuously for about 2 minutes until lightly browned.
7. Slowly pour in the water while stirring constantly to prevent lumps from forming.
8. Cover and simmer over low heat for 5 minutes.
9. Stir in the sour cream, wine vinegar, pinch of sugar, salt, and pepper. Taste and adjust seasonings as needed.
10. Keep the heat on low and do not allow to boil, as this will make the kidneys tough.
11. Serve with bread dumplings as a side dish.
12. Optional: add a pinch of sugar to individual servings for a sweet-and-sour flavor.