Orange Truffles

Procedure

1. Combine the cream, juice, liqueur, and butter in a saucepan and bring to a boil.
2. Whip the egg yolks with the sugar until light.
3. Gradually beat the hot liquid into the egg mixture.
4. Return this mixture to the heat and bring quickly to a boil, then remove from heat.
5. Strain the liquid over the chopped chocolate in a