Break the children`s chocolate into pieces, then melt with milk, cream, eggs, sugar and vanilla sugar in a saucepan on a low setting while stirring constantly. Do not bring to the boil.
As soon as the chocolate has completely dissolved, remove the pan from the heat and let it cool down for about 10-15 minutes, then mix in the vodka. Now the liqueur only has to be bottled and put in the refrigerator. Shake before serving. Makes about 1 1/2 liters.