Sprinkle gelatin on cold water and allow to bloom.
Combine egg yolks and sugar. Heat milk and cream
and pour slowly into egg yolks and sugar while
whisking quickly. Return to stove on low heat,
cook until it thickens; do not boil. Add gelatin
to custard and stir until well blended. Pour over
chocolate and use hand-blender to incorporate.
Fold into whipped cream when mixture is lukewarm.