01 - 
                In a slow cooker, toss in vanilla, cocoa powder, sugar, salt, milk, and chocolate chips.
              
              
              
                02 - 
                Set to high heat and stir frequently with a whisk until everything melts smoothly—takes around 45 minutes.
              
              
              
                03 - 
                Pour into cups and serve right away! Keep warm if needed and sprinkle on marshmallows or whipped topping.