Blueberry Crumble for 8 Servings

Instructions:

1. Preheat your oven to 375°F (190°C).
2. In a large bowl, toss the blueberries with granulated sugar, cornstarch, cinnamon, lemon juice, and lemon zest until the berries are coated in a thick, glossy glaze.
3. Pour the blueberry mixture into a 9x9 inch square baking dish, spreading it evenly.
4. In a separate bowl, whisk together all-purpose flour, old-fashioned rolled oats, light brown sugar, and salt.
5. Add the cold, cubed butter to the dry ingredients. Use a pastry cutter or fork to work the butter in until the mixture resembles coarse crumbs with a few pea-sized chunks remaining.
6. Scatter the crumble topping evenly over the blueberry filling without pressing it down.
7. Bake for 35–40 minutes until the filling is bubbling vigorously around the edges and the topping has turned a deep mahogany gold.