Hit SAUTE on the Instant Pot, and add cocoa, sugar, cinnamon and sea salt, and stir together
Pour in water, and stir constantly until mixture thickens and starts to bubble
Stir in the milk and cream, and keep stirring until mixture becomes smooth and creamy
Heat mixture until warm, but not boiling, and then hit CANCEL to turn off heat. Hit KEEP WARM, and stir again before serving
