Melt 2 Tbsp Butter in a soup pot. Sauté the Onions until translucent and just barely beginning to brown.Add the Garlic and sauté for another minute.Add the Mushrooms and sauté for 5 minutes until the mushrooms release their juices.Add the Paprika, Dill, Salt . When finished, transfer mushroom mixture from the pot to a bowl. Set aside.In the same soup pot, melt 3 Tbsp of Butter and stir in the Flour, constantly whisking for a minute until the mixture is a rich, caramelized brown.Add the Milk, Broth, and Soy Sauce, still whisking until the mixture is smooth.Add the mushroom mixture. Bring to a boil, reduce heat to low, cover and simmer for 15 minutes, stirring occasionally.Stir in the Sour Cream, simmer for another 2 minutes. Serve immediately with chopped Parsley. Add a dollop of sour cream to each bowl if desired.Served with crusty bread.