Instructions:
Making the Pie Dough:
- Combine flour, sugar, and salt in a large bowl.
- Grate chilled butter into the flour mixture or cut in using a pastry blender.
- Create a well in the center and gradually add ice water, mixing until dough comes together.
- Divide dough in half, shape into rectangles, wrap, and chill for at least 30 minutes.
Assembling the Apple Slices:
- Preheat oven to 400°F (200°C).
- Roll out one dough rectangle to fit a 9×13 inch jelly roll pan.
- Spread apple pie filling evenly over the dough.
- Roll out second dough rectangle, place over filling, and pinch edges.
- Cut vents in the top crust.
- Bake for about 40 minutes or until golden brown, rotating halfway through.
- Let cool on a wire rack.
Making the Glaze:
- Beat together powdered sugar, softened butter, vanilla, and milk until smooth.
- Spread glaze over cooled apple slices.
- Let glaze set before slicing and serving.