Slow Cooker Deluxe Hot Chocolate Buffet

In 3 1/2 or 4-quart slow cooker, combine unsweetened chocolate, chocolate chips and sweetened condensed milk; mix well.

Cover; cook on High setting for 30 minutes, stirring every 10 minutes or until chocolate is melted.

With wire whisk, stir in 2 cups of the milk until smooth. Gradually stir in remaining 6 cups milk and vanilla.

Cover; cook on High setting an additional 2 hours or until hot.

Just before serving, stir mixture again with wire whisk. Reduce heat setting to Low; have guests ladle hot chocolate into cups and top as desired.