Step 1: Get Your Cake Ready: If you made your own cake, let it cool completely. Then, whether it's homemade or store-bought, cut the cake into bite-sized cubes.
Step 2: Prep the Lemon Curd: If using homemade lemon curd, ensure it's fully cooled. Store-bought is ready to go!
Step 3: Start the Creamy Filling: In a large mixing bowl, take your softened cream cheese, vanilla extract, that optional tablespoon of limoncello, and the fresh lemon zest. Beat them together until the mixture is super smooth and there are no lumps, using an electric mixer.
Step 4: Sweeten and Add More Lemon: Now, add the ½ cup of lemon curd and the confectioner's sugar to the cream cheese mixture. Mix again until everything is perfectly smooth and combined. Taste it.
Step 5: Whip in the Heavy Cream: Pour in your well-chilled heavy cream. Start your mixer on a low speed to combine, then gradually increase to high. Whip until stiff peaks form. This usually takes about 5 minutes. If you're not assembling right away, pop this filling in the fridge.
Step 6: Begin the Layering: Find your beautiful trifle bowl! Start by placing a single layer of those cubed cake pieces at the bottom.
Step 7: Give the Cake a Spritz: Lightly brush or drizzle the cake layer with some of the 1/3 cup limoncello. If skipping the alcohol, use a little simple syrup or lemon juice mixed with a touch of water.
Step 8: Add Some Berry Jam: Dollop several spoonfuls of the blueberry preserves over the cake layer. Spread it gently.
Step 9: Next, More Lemon Curd: Add about ½ cup of the plain lemon curd (not the stuff mixed into the cream cheese) over the blueberry preserves.
Step 10: Layer on the Blueberries: Now, add a generous layer of fresh blueberries over the lemon curd.
Step 11: Top with the Creamy Filling: Spoon about 1 ½ to 2 cups of your prepared lemon cream cheese filling over the blueberry layer. Carefully spread it out evenly.
Step 12: Repeat the Layers: Keep going! Add another layer of cake cubes, brush with limoncello, add preserves, then lemon curd, then blueberries, then the creamy filling. Repeat this process until your trifle bowl is full.
Step 13: Finish with Flair: Arrange a final scattering of fresh blueberries on top. You can also add extra dollops of the lemon filling. For elegance and freshness, tuck in some fresh mint leaves and perhaps a few thin slices of lemon.
Step 14: Chill Time! Refrigerate for at least 1 hour before serving to allow flavors to meld and layers to set.