Preheat your oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish.

In a large mixing bowl, combine cherry pie filling, granulated sugar, cornstarch, lemon juice, and vanilla extract. Stir until well mixed.

In another bowl, blend all-purpose flour, rolled oats, brown sugar, ground cinnamon, and salt. Then mix in cold cubed butter until crumbly.

Pour the cherry filling into the prepared baking dish, then sprinkle the crumble topping evenly over it.

Bake for 50-60 minutes until the filling is bubbling and the topping is golden brown.

Let cool for a few minutes before serving with vanilla ice cream or whipped cream.