01 - Combine crushed vanilla wafer cookies with melted butter in a mixing bowl. Mix thoroughly until evenly moistened and press firmly into the base of a 9x13-inch baking dish. Place baking dish in the freezer to set while preparing the subsequent layers.
02 - In a clean bowl, beat softened cream cheese until smooth and free of lumps. Add powdered sugar, lemon juice, and lemon zest, mixing until well combined. Separately, whip cold heavy cream to stiff peaks. Gently fold whipped cream into the lemon-cream cheese mixture. Spread evenly over the chilled crust.
03 - In a saucepan, combine blueberries, granulated sugar, and lemon juice. Cook over medium heat for 4 to 5 minutes, stirring occasionally, until blueberries release juices. Stir in cornstarch slurry and simmer, stirring constantly, until mixture thickens, about 2 to 3 minutes. Remove from heat and allow to cool completely before use.
04 - Once cooled, evenly spread the blueberry mixture over the lemon cream layer in the baking dish.
05 - In a mixing bowl, beat the cold heavy whipping cream with powdered sugar and vanilla extract until stiff peaks form. Spread whipped cream evenly over the blueberry layer.
06 - Sprinkle zest of 1 lemon over the top and garnish with fresh blueberries if desired.
07 - Cover the assembled dessert and refrigerate for at least 4 hours, preferably overnight, to allow layers to firm. Slice and serve chilled.