Chocolate Custard Dairy Book of Home Cookery
Enough for 4 small trifles
1/2 tsp vanilla essence
2 egg yolks
30g dark chocolate, melted
Whisk together milk, vanilla and eggs. Warm on a low heat until the custard coats the back of a spoon. Add melted chocolate and stir together. Cool before adding to the trifle.
I also made a trifle in a jar for my friend as a surprise!