Blueberry Crumble

Preheat your oven to 375°F (190°C).

In a large mixing bowl, combine the blueberries, granulated sugar, cornstarch, lemon zest, lemon juice, and vanilla extract. Toss until the blueberries are evenly coated.

Pour the mixture into a greased 9×9-inch baking dish and spread it out evenly.

In a medium bowl, combine the flour, oats, brown sugar, cinnamon, and salt. Mix well.

Add the cold, cubed butter to the dry mixture. Use a pastry cutter or your fingers to cut the butter into the mixture until it resembles coarse crumbs.

Sprinkle the crumble topping evenly over the blueberry filling.

Bake in the preheated oven for 35-40 minutes, or until the topping is golden brown and the filling is bubbling.

Let the blueberry crumble cool for 10-15 minutes before serving.

Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream for an extra treat!