|Put cold milk and gelatin into blender, add hot milk. Process at stir until gelatin is dissolved.|
Push liquefy button, then add chocolate chips. Blend until chips are dissolved. Add marshmallows one at a time. When marshmallows are liquefied, add vanilla extract. Pour into a bowl and chill until firm. Return to blender, add the cream, cover and whip until thick and fluffy. Pour at once into 1-quart freezer container and freeze until firm.