My sister whipped this up for a BBQ, and everyone wanted the recipe!

1 pound Polish sausage, sliced
1 jar (32 ounces) sauerkraut, drained
4 medium potatoes, quartered
2 apples, cored and sliced
1 cup chicken or vegetable broth
1 teaspoon caraway seeds
1 bay leaf
1 teaspoon dried thyme
1 teaspoon dried rosemary
Salt and pepper to taste
1 cup shredded cheese (optional)
Fresh parsley leaves for garnish