Fresh Blueberry Dessert Bars with Oats

Instructions:

1. Preheat your oven to 350°F (175°C) and line a 9x9 inch baking pan with parchment paper, leaving an overhang for easy removal.
2. In a large bowl, whisk together the flour, rolled oats, brown sugar, and salt.
3. Add the cubed cold butter and use a pastry cutter or fork to work the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized lumps remaining.
4. Press exactly half of the crumble mixture firmly into the bottom of the prepared pan.
5. In a medium bowl, combine the fresh blueberries, granulated sugar, cornstarch, lemon juice, and lemon zest. Gently toss until evenly coated.
6. Pour the blueberry filling over the crust and spread into an even layer.
7. Spoon the remaining crumble mixture over the top of the berries, allowing it to fall naturally.
8. Bake for 40–45 minutes until the edges are mahogany-colored and the fruit filling is bubbling.
9. Remove from oven and allow the bars to cool completely in the pan for at least 2 hours before cutting.