Blueberry Bars with Rolled Oats

Instructions:

1. In a large bowl, whisk together the oats, flour, brown sugar, and salt.
2. Add the chilled cubed butter. Use a pastry cutter or fork to work the butter into the flour until the mixture resembles coarse crumbs with some pea-sized lumps.
3. Line a 9x13 inch pan with parchment paper. Press approximately two-thirds of the crumble mixture firmly into the bottom of the pan to create an even base.
4. In a separate bowl, combine the blueberries, cornstarch, maple syrup, lemon juice, lemon zest, and cinnamon.
5. Stir gently until every berry is coated in the cornstarch mixture to prevent the filling from becoming runny.
6. Pour the berry mixture over the pressed crust, spreading it evenly to the edges.
7. Sprinkle the remaining oat mixture over the berries, squeezing a few clumps in your hand to create varied textures on top.
8. Bake at 350°F (175°C) for 35–40 minutes until the edges are bubbling and the topping is a deep mahogany-gold.
9. Allow the bars to cool completely before slicing.