Kulajda (Czech Creamy Mushroom and Potato Soup)

Name: Kulajda (Czech Creamy Mushroom and Potato Soup)
Prep time: 35 min
Cook time: 35 min
Total time: 35 min
Yield: 2
Ingredients: 4 eggs; 2 tbsp vinegar; 6 potatoes; caraway seeds, as needed; 2 bay leaves; allspice, as needed; 1 cup sour cream; plain flour, as needed; 1 handful fresh mushrooms; chopped dill, as needed; ground black pepper, as needed