Add your 2 parts whole milk, 1 part heavy cream, and 1 part of evaporated milk to a saucepan.
Heat milk and whisk while heating. Heat to steaming hot but not boiling - around 190° F.
Add ½ cup of Ghirardelli cocoa powder to milk. Then add ½ cup of 70% dark baking chocolate and whisk together.
Add ½ cup of sugar and continue to whisk until everything is mixed in completely.
Add 1 pinch of salt and a small pinch of ground cinnamon. Add instant coffee if you would like. Whisk to combine all ingredients.