01 -
Preheat the oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
02 -
In a medium bowl, mix graham cracker crumbs and melted butter until well combined. Press the mixture evenly into the prepared baking pan to form the crust.
03 -
In a small saucepan, combine blueberries, sugar, cornstarch, and water. Cook over medium heat, stirring constantly, until the mixture thickens and the blueberries have broken down (about 5-7 minutes). Remove from heat and let cool slightly.
04 -
Pour the blueberry mixture over the graham cracker crust, spreading it evenly.
05 -
In a microwave-safe bowl, melt the white chocolate chips in 30-second intervals, stirring between each, until smooth. Stir in the sweetened condensed milk and vanilla extract until well combined.
06 -
Pour the white chocolate mixture over the blueberry layer, spreading it evenly.
07 -
Bake in the preheated oven for 20-25 minutes, or until the edges are lightly browned and the white chocolate layer is set.
08 -
Allow the bars to cool completely in the pan before cutting into squares.