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Apple Slab Pie

apple slab pie with golden flaky crust and warm cinnamon apple filling

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A crowd-pleasing apple slab pie with flaky crust and warm cinnamon-spiced apple filling, baked in a sheet pan for easy sharing.

Ingredients

Scale
  • 2 ½ cups plain flour
  • 1 teaspoon salt
  • 1 tablespoon granulated sugar
  • 1 cup unsalted butter (cold, cut into cubes)
  • 67 tablespoons ice water
  • 6 cups thinly sliced apples (Granny Smith, Honeycrisp, or Braeburn)
  • ¾ cup brown sugar
  • ¼ cup granulated sugar
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon nutmeg
  • 1 tablespoon lemon juice
  • 1 tablespoon cornstarch
  • 1 egg (for egg wash)
  • Coarse sugar for sprinkling

Instructions

  1. Combine flour, salt, and sugar in a large bowl. Cut in cold butter until mixture resembles coarse crumbs.
  2. Add ice water, one tablespoon at a time, mixing just until the dough comes together. Divide in half, shape into discs, and chill 30 minutes.
  3. Toss sliced apples with sugars, cinnamon, nutmeg, lemon juice, and cornstarch until evenly coated.
  4. Preheat oven to 400°F. Roll one dough disc into a rectangle to fit a 10×15-inch pan. Press into the pan.
  5. Spread apple filling evenly over the crust, then cover with the second rolled dough. Trim and crimp edges, cut vents, brush with egg wash, and sprinkle with coarse sugar.
  6. Bake 35–40 minutes until the crust appears golden and the filling bubbles. Cool 1 hour before slicing and serving.

Notes

  1. For best results, mix apple varieties for depth of flavor.
  2. Chill dough before rolling to keep the crust flaky.
  3. Reheat leftovers in the oven to restore crispness.