01 - Combine the crushed cookies with melted butter in a bowl. Press the mixture firmly into the bottom of a 9x13 inch dish. Refrigerate while preparing the next layer.
02 - Combine blueberries, sugar, lemon juice, and water in a saucepan. Cook over medium heat until the berries burst. Whisk cornstarch with a splash of water to form a slurry, then stir into the berry mixture. Simmer until thickened, about 2 minutes. Allow to cool completely.
03 - Beat cream cheese with powdered sugar until smooth. Incorporate lemon zest and juice, mixing until evenly distributed. In a separate bowl, whip cold heavy cream to stiff peaks. Gently fold the whipped cream into the lemon mixture until just combined.
04 - Spread half of the lemon cream over the chilled cookie crust. Carefully distribute half the blueberry sauce over the cream layer. Repeat with the remaining lemon cream followed by the remaining blueberry sauce.
05 - Cover the dish and refrigerate for at least 4 hours, or overnight for optimal texture and flavor development.
06 - Spread whipped cream over the top layer. Garnish with fresh blueberries and lemon zest before slicing and serving.