Anise Ice-Cream

Name: Anise Ice-Cream (Parfait glacé à la liqueur d’anis)
Prep time: 1 h
Total time: 7 h
Yield: For four to five people
Cuisine: French
Ingredients: 3 generous tablespoons Pastis or anise-flavoured liqueur; 3 generous tablespoons Pastis or anise-flavoured liqueur; 6 egg yolks; 150 g (5½ oz) caster sugar; 200 ml (⅓ pint) whipping cream, well-chilled