Crock Pot Potato and Cabbage Soup With Bacon

Name: Crock Pot Potato and Cabbage Soup With Bacon
Ingredients: 4 cups chicken stock (unsalted or low sodium); 3 potatoes (peeled and diced); 1 1/2 cups cabbage (chopped); 1 leek (diced, with white and only the very light green parts); 1/2 cup onion (chopped); 2 carrots (diced); 1/4 cup parsley (chopped); 1 teaspoon salt (or to taste); 1/2 teaspoon pepper; 1/2 teaspoon caraway seeds; 1 bay leaf; 8 ounces bacon (or more, as desired); 1/2 cup sour cream