Chocolate Blend
In the top of a double boiler over boiling water, melt the first two cocoas with the sugar and butter, creaming to a smooth paste.
Add the remaining chocolates and continue melting, slowly dribbling the milk into the mixture and stirring constantly until thoroughly blended and smooth as silk.
Cool to room temperature and follow the recipe for Frozen Hot Chocolate.
Frozen Hot Chocolate
Place all ingredients in a blender and blend on high. If your frozen slush looks more like slush, slowly add more ice.
When a thick stage is reached, pour into a grapefruit bowl [or similar serving container of your choice] and top with a mound of whipped cream, sprinkle with grated chocolate. Insert two straws for sipping and serve with an iced-tea spoon for devouring.
Additional Notes
Callebaut, Valrhona, Lindt, Cadbury, Anton Berg, Freia, Marabo, Ghirardelli, Cacao Barry