Promised Land CSA » Cream of winter rutabaga soup with cinnamon

Ingredients

• 2 Tbsps butter
• 1 onion, peeled and chopped
• 1/2 cinnamon stick
• 1 1/4 pounds rutabaga
• 4 Tbsps light cream
• salt and freshly ground black pepper
• caramelized onion rings to garnish (optional)