Place sliced cabbage in crockpot. Toss with diced potato, salt and caraway seed. Add sliced onion and Polish sausage. Pour chicken broth over all; stir lightly. Cover and cook on Low setting for 8 to 10 hours (on HIGH setting for 2 to 4 hours).
This dish is delicious served with mustard, horseradish and boiled new potatoes. Makes 4 servings (about 3.5 quarts).