01 -
Preheat oven to 350°F (175°C). Line an 8x8 inch baking pan with parchment paper, allowing the paper to overhang for easy removal.
02 -
In a large bowl, whisk together all-purpose flour, powdered sugar, and salt. Incorporate the cold cubed butter using a pastry cutter or fingertips until the mixture forms coarse crumbs. Evenly press the mixture onto the bottom of the lined pan. Bake for 10-12 minutes or until lightly golden. Allow the crust to cool completely.
03 -
In a separate bowl, beat the softened cream cheese and granulated sugar until smooth and creamy. Add the egg and vanilla extract, mixing until well combined. Gently blend in the sour cream just until incorporated.
04 -
Spread the cheesecake filling evenly over the cooled crust. Distribute the fresh blueberries in a single layer on top of the filling.
05 -
In a medium bowl, whisk together all-purpose flour, rolled oats (if using), brown sugar, ground cinnamon, and salt. Blend in the cold cubed butter with a pastry cutter or fingertips until the mixture resembles coarse crumbs. Evenly scatter the crumble mixture over the blueberries.
06 -
Bake for 35-40 minutes, or until the edges are golden and the center is just set.
07 -
Allow the bars to cool completely in the pan on a wire rack. Refrigerate for at least 2 hours, or until fully chilled and firm.
08 -
Lift the chilled bars out of the pan using the parchment paper. Cut into squares and serve.