For a richer flavor, you can make the lemon curd from scratch. If ladyfingers are unavailable, use cubes of pound cake or angel food cake. This trifle is best made at least 4 hours in advance or overnight to allow flavors to meld and cake to soften. Garnish with extra blueberries and lemon zest right before serving.
Keyword blueberry lemon trifle, summer dessert, no-bake, easy trifle, fruit dessert, layered dessert