Blackberry Crumble with Oats

Instructions:

1. Preheat your oven to 375°F (190°C).
2. In a large bowl, toss the blackberries with granulated sugar, cornstarch, lemon juice, and cinnamon. Stir gently to ensure the berries are evenly coated without crushing the fruit.
3. Pour the berry mixture into an 8x8 inch baking dish, spreading it into an even layer.
4. In a medium bowl, whisk together the flour, oats, brown sugar, salt, and cinnamon.
5. Add the chilled, cubed butter to the dry ingredients. Using a fork or fingertips, press the butter into the mixture until it resembles coarse crumbs with some pea-sized lumps remaining.
6. Sprinkle the crumble topping evenly over the berries.
7. Bake for 30–35 minutes until the filling is bubbling around the edges and the topping is a deep mahogany-gold.
8. Remove from the oven and let it rest for 10 minutes to allow the juices to set.