Wow! This incredible party trifle, with layers of cream and custard, tastes especially good if made a day ahead.
Cans of Devon custard are sold in supermarkets. If you can’t find them, prepare about 2 cups (500 mL) store-bought custard powder following directions on the package.
Instead of using Rumtopf liquid to dip ladyfingers, brush them with rum, Marsala or sherry.