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+ servings
Four stacked Apple Slab Pie bars on a plate, with whole green apples and autumn leaves nearby.
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3.80 from 10 votes

Apple Slab Pie

Feed a crowd with this classic sheet pan apple pie recipe. Granny Smith and Golden Delicious apples, buttery pie crust, cinnamon, and a glossy glaze make the perfect sheet pan dessert.
Prep Time45 minutes
Cook Time1 hour
Total Time1 hour 45 minutes
Course: Dessert
Cuisine: American, Southern
Diet: Vegetarian
Servings: 18 servings
Cost: $1.16 per slice

Ingredients

for the pie

  • 8 Granny Smith apples peeled, cored, and sliced
  • 8 Golden Delicious apples peeled, cored, and sliced
  • 1 ½ cups sugar divided
  • ½ teaspoon Kosher salt
  • baking spray
  • 1 ½ cups animal crackers
  • 2 packages of 2 each refrigerated ready to roll pie crusts 2 crusts for the bottom and 2 crusts for the top
  • 4 tablespoons unsalted butter softened to room temperature
  • 6 tablespoons tapioca or sifted cornstarch
  • 2 teaspoons cinnamon
  • 3 tablespoons lemon juice fresh

for the glaze

  • ¾ cup apple liquid reserved from the macerated apples
  • 2 tablespoons lemon juice fresh
  • 1 tablespoon unsalted butter
  • 1 ¼ cups confectioners' sugar

Instructions

  • This recipe is written for an 18" x 13" rimmed baking sheet, the ideal size for a full sheet-pan apple pie. For a half recipe, a 9.5" x 13" pan works perfectly. See above for tips on rolling the crusts, stabilizing with animal cracker crumbs, and fitting everything neatly in your pan.

for the pie

  • Toss apples, 1 cup sugar, and salt in colander set over large bowl. Let sit, tossing occasionally, until apples release their juices, about 45 minutes. Press gently on apples to extract liquid and reserve 3/4 cup juice. If your apples don’t yield the full ¾ cup juice, supplement with store-bought apple juice if a lot, or water if only a little.
    8 Granny Smith apples, 8 Golden Delicious apples, 1 ½ cups sugar, ½ teaspoon Kosher salt
  • Lightly coat an 18 x 13-inch baking sheet with baking spray. Line a second sheet pan with parchment. Set aside. Pulse the animal crackers with the remaining sugar in a food processor until they are finely ground.
    baking spray, 1 ½ cups animal crackers, 1 ½ cups sugar
  • Sprinkle a handful of this cracker mixture over your work surface to prevent sticking. Lay down one sheet of dough and lightly brush it with water, then place a second sheet on top, aligning the edges. Sprinkle a little more of the cracker mixture on top of the second sheet.
    2 packages of 2 each refrigerated ready to roll pie crusts
  • Roll the double-layered dough evenly into a rectangle about 19 inches by 14 inches. Carefully transfer the rolled dough to the prepared rimmed baking sheet. Brush with the softened butter and refrigerate for 15–20 minutes. Repeat the rolling step now for the top crust, skipping the butter. Once rolled, transfer the top crust to a separate baking sheet lined with parchment paper.
    Note: Refrigeration firms up the dough, making it easier to handle and helping prevent shrinking or tearing when you add the filling and top crust. If you want a more relaxed timeline, you can chill up to 30–60 minutes without issue. If you do go longer, consider laying a sheet of plastic film over both crusts to avoid them drying out.
    4 tablespoons unsalted butter
  • Adjust oven rack to lower-middle position and heat oven to 350° F. Toss drained apples with tapioca, cinnamon, and lemon juice and arrange evenly over bottom crust, pressing lightly to flatten.
    6 tablespoons tapioca, 2 teaspoons cinnamon, 3 tablespoons lemon juice
  • Brush edges of bottom crust with water, and arrange top crust on pie. Press crusts together and use a paring knife to trim any excess dough, leaving a 1/2" rim of pastry; fold pastry under itself and tuck into rim of baking sheet. Use fork to crimp and seal outside edge of pie, then pierce top of pie at 2-inch intervals with fork.
  • Bake until pie is golden brown and juices are bubbling, about 1 hour. Transfer to wire rack and let cool 1 hour.

for the glaze

  • While pie is cooling, simmer the reserved apple liquid in a saucepan over medium heat until syrupy and reduced to 1/4 cup, about 6 minutes. Stir in lemon juice and butter and let cool to room temperature. Whisk in confectioners' sugar.
    ¾ cup apple liquid, 2 tablespoons lemon juice, 1 tablespoon unsalted butter, 1 ¼ cups confectioners' sugar
  • Drizzle the glaze evenly over the pie. Allow pie to finish cooling completely, at least 1 hour longer. Cut into thirds lengthwise, and into sixths widthwise, making 18 pieces each about 4"x3".

Notes

Make Ahead: The pie can be made up to 24 hours in advance and refrigerated. Bring to room temperature before serving.
Pan & Equipment Details:
  • Full recipe pan: 18" × 13" rimmed baking sheet
  • Half recipe pan: 9.5" × 13" rimmed baking sheet
  • Lightly coat conventional sheet pans with cooking spray
Apple Prep Notes:
  • Macerate/weep apples in colander for 30–45 minutes to release juices
  • If resulting liquid is insufficient for glaze, supplement with store bought apple juice or water
Serving & Storage:
  • Refrigerator: Cover the cooled pie loosely with plastic wrap or foil. Refrigerate for up to 3 days. Bring to room temperature or warm briefly in a 350°F oven before serving.
  • Freeze: Wrap the whole baked pie tightly in plastic wrap and then in foil. Freeze for up to 2 months. To serve, thaw overnight in the refrigerator. May reheat in a 350°F oven for 15–20 minutes until warmed through.
  • Freeze Individual Slices: Wrap cooled slices tightly in plastic wrap, then place in a freezer-safe bag or container. Freeze up to 2 months. Thaw overnight in the refrigerator before enjoying.

Nutrition

Serving: 1serving | Calories: 273kcal | Carbohydrates: 59g | Protein: 1g | Fat: 5g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 0.2g | Cholesterol: 8mg | Sodium: 105mg | Potassium: 199mg | Fiber: 4g | Sugar: 46g | Vitamin A: 186IU | Vitamin C: 9mg | Calcium: 15mg | Iron: 0.3mg