Set the temperature of oven to 350 F (175 C).
In a bowl, mix the sugar, graham crack crumbs, and melted butter until completely mixed. Press this mixture evenly into the bottom of a baking dish of size 9 x 13 inches. Bake the crust in the oven for around 8-10 minutes, then remove and allow it cool completely.
In a large bowl, mix the cream cheese until creamy and soft. Then, include vanilla extract, and powdered sugar and keep mixing until everything is smooth and well mixed. Fold in the thawed whipped topping until completely mixed in.
With a help of a spatula, evenly spread the cream cheeseover the cooled crust, making it smooth from the top. Place the baking sheet in the refrigerator while preparing the blueberry topping
In a sauce pan, add granulated sugar, blueberries, water,cornstarch, and lemon juice. Cook over medium heat while stirring until the blueberries pop and the mix thickens, it may take around 5-7 minutes. Remove the mix from the heat and let it cool completely.
After the blueberry mix gets cool, make sure to pour it over the cream cheese layer. Spread it gently using a spatula.
Place a lid on the baking sheet and put it in therefrigerator for a minimum of 4 hours, or overnight until the dessert is firm.
It’s time to serve the delightful blueberry yum yum.