How to Make It
Heat olive oil in a Dutch over medium heat. Add onion; cook 2-3 minutes, until tender. Add next 7 ingredients (garlic through cinnamon), stir, and cook 3-4 minutes.
Pour in beer, stir and scrap any bits off the bottom of the pan. Stir in remaining ingredients. Bring to a boil, reduce to medium heat and simmer for 30-35 minutes, stirring often to prevent burning, until sweet potato is tender.