2 sweet potatoes, peeled and chopped
1/2 head cabbage, coarsely chopped
1 cup chopped carrots
1 pound turkey bratwurst, sliced
1/2 teaspoon salt
1/2 teaspoon dried thyme
1/2 teaspoon dried rosemary
1/2 teaspoon ground white pepper
1/2 cup dry white wine
3 cups chicken broth