Place all ingredients in a large slow cooker. Cover and turn on high for at least 3 hours, or on low for at least 5 hours.
Ladle the hot mulled wine into glasses or mugs. Garnish with the fruit and cinnamon sticks.
STOVETOP INSTRUCTIONS: Place all ingredients in a large sauce pot over high heat. Bring to a boil, lower the heat, and simmer for 10-12 minutes. Cover and allow the mixture to steep until ready to serve.