Add sweet potato, salt and pepper, broth, and rosemary stem. Bring to a boil, then simmer for 20-25 minutes. The rosemary will be removed so don't pull the leaves off the stem.
Add sweet potato, salt and pepper, broth, and rosemary stem. Bring to a boil, then simmer for 20-25 minutes. The rosemary will be removed so don't pull the leaves off the stem.