Start by finely chopping the dark chocolate and keep it aside.
Pour the whole milk, heavy cream, a sweetener of your choice, and finely chopped chocolate into the instant pot liner.
Close the instant pot lid, cook on pressure cook mode for 3 minutes, high pressure and normal. Quick release.
Turn on keep warm mode until ready for serving.
Serve it with our favorite toppings like marshmallows, shaved chocolate, or a sprinkle of Dutch cocoa powder.