Step 1

Preheat oven to 375°F. Lightly spray an 8 or 9-inch baking dish with nonstick cooking spray and set aside.

Step 2

In a medium bowl combine all purpose flour, brown sugar, salt, baking powder and cinnamon. Whisk to combine.

Step 3

Add the melted butter and stir with a fork until crumbly.

Step 4

In a large bowl, combine apples, granulated sugar, lemon juice, cornstarch (or flour if using) and ground cinnamon.

Step 5

Transfer apple mixture to the prepared baking dish and spread into an even layer.

Step 6

Sprinkle crumble mixture evenly over the top of the filling.

Step 7

Bake for 35 to 45 minutes or until bubbling and golden brown on top.

Step 8

Let cool for 15 minutes before serving with ice cream if desired.