Add a tablespoon of water if mixture is still too dry. Using hands, press into a parchment paper-lined, 9-inch round pie dish. Prick bottom and sides of crust with a fork. Place in freezer 5 minutes.
Preheat the oven to 400 degrees F (200 degrees C.) Arrange apple slices in unbaked pie shell. Mix 1/2 cup sugar and cinnamon; sprinkle over apples. To make the crumble topping: Place 1/3 cup sugar and ...