In a medium saucepan, whisk together evaporated milk, brown sugar, cocoa, salt, cinnamon, cloves and coffee. Bring to a boil over medium-high heat, reduce heat to medium, and simmer for 2 minutes. Add 2% milk and heat through. Do not boil. Remove from heat, add vanilla, and whisk until frothy. Serve in mugs. Garnish with ground cinnamon and cinnamon sticks if desired. Optional: Top with fresh, homemade whip cream.