Prepare the Crust:

o Preheat your oven to 350°F (175°C) and line a 9x9-inch baking pan with parchment paper.

o In a medium bowl, mix together the graham cracker crumbs, sugar, and melted butter until the crumbs are fully moistened.

o Press the mixture evenly into the bottom of the prepared pan to form a firm crust.

o Bake for 10 minutes, then set aside to cool while you prepare the filling.

Make the Filling:

o In a blender or food processor, blend the cottage cheese until smooth, removing any lumps.

o In a large mixing bowl, combine the cottage cheese, Greek yogurt, sugar, eggs, vanilla extract, lemon juice, and zest.

o Mix well until everything is fully incorporated.

o Sift in the cornstarch and stir to remove any clumps. The mixture should be creamy and smooth.

Assemble and Bake:

o Pour the filling over the cooled crust, spreading it out evenly.

o Bake in the preheated oven for 35-40 minutes, or until the center is set and no longer jiggly.

o Let the bars cool in the pan for 1 hour at room temperature before transferring to the fridge to chill for at least 3 hours, or until firm.

Cut and Serve:

o Once chilled, lift the bars out using the parchment paper and cut into squares. Serve chilled, and enjoy!