Chop the chocolate into small pieces. Place them in a bowl. Stir in one cup of milk, coffee powder, and sugar. Mix well.
Microwave the bowl on high (100%) for one minute. Remove the bowl and mix well.
Blend the mixture in a blender. Blend the mixture again with the remaining milk and ice cubes.
Put the mixture into glasses. Top with chocolate chips and whipped cream.
Serve right away.