Slow cooker Kahlua hot chocolate warms you up in more ways than one! Add some marshmallows to this hot chocolate and you're all set for chilly winter nights or holiday parties! This is going to become your favorite winter cocktail / dessert combination.
Combine all ingredients except for Kahlua in a 2.5 quart slow cooker. Cook on high for 2 hours, giving it a good stir every 30 minutes. After 2 hours turn to warm and add Kahlua. Stir well and serve hot.