Sauerkraut soup is hearty and perfect on a cold winter day. A true comfort food.
Meanwhile, in a small skillet, make the paprika roux, called zaprazka. Melt the butter over medium heat, then stir in the flour and paprika to form a roux. Cook, stirring, for 1 minute, then add to the soup, and stir to blend. Serve hot.
Please note that if you are using a bread bowl, simply cut off the top of a round sourdough bread loaf and scoop out the inside. Heat the shell in the oven until warm and the outside gets a little bit crusty. Serve the hot soup in the bread bowl.