Brew a pot of robust French Roast or Espresso style coffee. In a small sauce pan warm whole milk and add cocoa. Pour two large coffee cups 3/4 full of the coffee. While milk is coming to a simmer use hand mixer on high speed to create froth and incorporate the cocoa.
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Once the "chocolate milk" has a nice foamy head, carefully pour milk into coffee cups spooningfoam on top. Dust with cocoa.