Prepare the Crust:

Preheat your oven to 350°F (175°C). Grease a 9x9-inch baking pan and line it with parchment paper. In a bowl, mix the graham cracker crumbs, granulated sugar, and melted butter until combined. Press the mixture evenly into the bottom of the pan to form the crust. Bake for 8 minutes, then set aside to cool.

Make the Cheesecake Filling:

In a blender, combine the cream cheese, granulated sugar, eggs, and vanilla extract. Blend until smooth and creamy. Pour the cheesecake mixture over the cooled crust, spreading it evenly with a spatula.

Create the Cinnamon Swirl:

In a small bowl, mix the brown sugar, cinnamon, and melted butter. Drop spoonfuls of the cinnamon mixture onto the cheesecake layer and swirl it through the batter with a knife or skewer.

Bake the Bars:

Bake the cheesecake bars for 25–30 minutes, or until the center is just set. Remove from the oven and allow them to cool to room temperature, then refrigerate for at least 2 hours or until firm.

Prepare the Glaze:

In a small bowl, whisk together the powdered sugar, milk, and vanilla extract until smooth. Drizzle the glaze over the chilled bars before serving.