Step 1

Add the milk, condensed milk, whipping cream, cocoa powder, vanilla extract, and salt to a 5-quart Crockpot.

Step 2

Whisk vigorously until the cocoa powder dissolves for about 1-2 minutes. Stir in the chocolate chips.

Step 3

Cover and cook it on low heat for 2-3 hours. Stir occasionally, ensuring the chocolate chips melt and don’t stick to the bottom of the pot.

Step 4

Ladle the hot chocolate into mugs and top it with mini marshmallows. Keep it on a warm setting to serve continuously.