Grand Marnier Custard Sauce - cooking recipe

Ingredients

6 egg yolks
1/3 cup sugar
1 cup heavy cream
1/2 cup half-and-half
4 tablespoons Grand Marnier
1/4 teaspoon grated orange zest

Preparation

Beat egg yolks and sugar with whisk in medium saucepan until light in colour, about 5 minutes.
Scald heavy cream and half and half in separate saucepan.
Stir hot cream gradually into yolks, whisking constantly.
Cook, stirring constantly, over medium-low heat, until sauce thickens and coats the back of a spoon; do not allow to boil.
Remove from heat.
Stir in Grand Marnier and orange zest.
Cool to room temperature.
Place plastic wrap directly onto surface and refrigerate until cold.