Step 1: Prepare the Lemon Syrup. In a small saucepan, combine 1/2 cup water, 1/4 cup granulated sugar, and the zest of one lemon. Bring to a gentle simmer, stirring until the sugar dissolves. Remove from heat and stir in 2 tablespoons of fresh lemon juice. Let it cool completely.
Step 2: Make the Lemon Cream. In a large bowl, whisk together 1 cup cold heavy cream, 1/2 cup powdered sugar, and the zest of one lemon until stiff peaks form. In a separate bowl, combine 8 ounces softened cream cheese, 1/4 cup granulated sugar, and 2 tablespoons fresh lemon juice. Beat until smooth and creamy. Gently fold the whipped cream into the cream cheese mixture until just combined. Be careful not to overmix.
Step 3: Prepare the Blueberries. In a medium bowl, gently toss 2 cups fresh blueberries with 1 tablespoon granulated sugar and 1 tablespoon fresh lemon juice. Let sit for 10 minutes to allow the flavors to meld.
Step 4: Assemble the Trifle Layers. Choose a beautiful trifle dish or a large glass bowl. Start by arranging a single layer of ladyfingers (or pound cake slices) at the bottom. You may need to break them to fit.
Step 5: Drizzle and Spread. Drizzle about one-third of the cooled lemon syrup evenly over the ladyfingers.
Step 6: Layer the Cream and Berries. Carefully spread one-third of the lemon cream over the syrup-soaked ladyfingers. Then, spoon one-third of the prepared blueberries over the cream layer.
Step 7: Repeat the Layers. Repeat steps 4-6 twice more, finishing with a generous layer of blueberries on top.
Step 8: Chill to Perfection. Cover the trifle dish with plastic wrap and refrigerate for at least 4 hours, or preferably overnight. Chilling is crucial for the flavors to meld and the trifle to set.
Step 9: Garnish and Serve. Before serving, garnish with fresh lemon slices, additional fresh blueberries, and a sprinkle of lemon zest. Serve chilled.