01 - Whip the heavy cream with powdered sugar and vanilla extract until stiff peaks form. Set aside.
02 - Toss blueberries with granulated sugar and let sit for 10 minutes to release natural juices.
03 - Arrange half of the cake cubes evenly in the bottom of a trifle dish or large glass bowl.
04 - Spread half of the lemon curd over the cake cubes in an even layer.
05 - Distribute half of the blueberries over the lemon curd.
06 - Spread half of the whipped cream over the blueberries.
07 - Layer remaining cake cubes, lemon curd, blueberries, and whipped cream in the same order.
08 - Sprinkle lemon zest over the top and add a few extra blueberries for visual appeal.
09 - Refrigerate for at least 1 hour before serving to allow flavors to meld and layers to set.