First, dip the glass in water then in red sprinkles to coat the rim. This is optional but adds a fun look to the glass.

Now, stir together milk, vanilla, food coloring and mint chocolate in a medium saucepan. You can also use the crock-pot or instant pot to heat this up.

Cook over medium-low heat, stirring often, until the white hot chocolate comes to a simmer and is melted. Do not let it boil as you will burn the chocolate and it will smell terrible and not melt properly. 

Next, remove from heat and serve immediately, topped with whipped cream.