01 -
In a medium saucepan, combine milk, cocoa powder, granulated sugar, and sea salt if using.
02 -
Heat over medium heat while whisking constantly until the mixture is warm and all dry ingredients are fully dissolved; avoid boiling.
03 -
If using, stir in semi-sweet chocolate chips until completely melted and smooth.
04 -
Add caramel sauce and vanilla extract, stirring until well blended and heated through.
05 -
Pour the hot cocoa evenly into two mugs.
06 -
Top each serving with mini marshmallows, drizzle extra caramel sauce over them, and add whipped cream if desired.