Step 1

Preheat the oven to 375 degrees F. Line a 9x13 baking dish with parchment paper, leaving a slight overhang on the two longer sides. (Alternatively, lightly coat the pan with nonstick cooking spray.)

Step 2

In a medium bowl, mix the flour, brown sugar, 1/4 cup of the granulated sugar, cinnamon, and salt. Work in the egg and butter with a pastry blender (or your hands!) until pea-sized clumps form and virtually no loose flour remains. Press half of mixture evenly into the prepared pan.

Step 3

In another bowl, stir together the remaining 1/2 cup granulated sugar and cornstarch. Squeeze out any excess liquid from the grated apples with your hands, then mix them into the sugar until thoroughly combined. Sprinkle the apple mixture evenly over the crust. Crumble the remaining dough over the top of the apples.

Step 4

Bake for about 25-30 minutes or until the top is slightly golden. Cool completely before cutting into squares and enjoy!