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slice of apple slab pie on a black plate with a fork

Apple Slab Pie with Maple Icing

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 17 reviews
  • Author: Sally
  • Prep Time: 3 hours
  • Cook Time: 45 minutes
  • Total Time: 6 hours
  • Yield: about 18 slices
  • Category: Pie
  • Method: Baking
  • Cuisine: American

Description

Slab pies feed a crowd and this simple apple slab pie with maple icing is always a crowd-pleaser!


Ingredients

Crust

  • 4 cups (500g) all-purpose flour (spooned & leveled)
  • 1 and 1/2 teaspoons salt
  • 1 teaspoon granulated sugar
  • 1 and 3/4 cup (396g) unsalted butter, very cold and cubed
  • 3/4 cup (180ml) very cold ice water
  • egg wash: 1 large egg, lightly beaten with 1 Tablespoon (15ml) milk
  • optional: coarse sugar for sprinkling on top

Filling

  • 10 cups peeled and chopped apples (about 45 lbs)*
  • 2/3 cup (135g) granulated sugar
  • 1/4 cup (31g) all-purpose flour
  • 2 Tablespoons (30ml) fresh lemon juice
  • 1 teaspoon pure vanilla extract
  • 1 and 1/2 teaspoons ground cinnamon
  • 1/4 teaspoon ground cloves
  • 1/4 teaspoon ground nutmeg

Glaze

  • 3/4 cup (90g) confectioners’ sugar, sifted
  • 2 Tablespoons (30ml) pure maple syrup
  • enough milk or heavy cream to thin (a couple teaspoons)

Instructions

  1. Make the pie crust: Mix the flour, salt, and sugar together in a large bowl. Add the butter. Using a pastry cutter or two forks, cut the butter into the mixture until it resembles coarse meal (pea-sized bits with a few larger bits of fat is OK). A pastry cutter makes this step very easy and quick. Drizzle the cold water in, 1 Tablespoon (15ml) at a time, and stir with a rubber spatula or wooden spoon after every Tablespoon (15ml) added. Do not add any more water than you need to. Stop adding water when the dough begins to form large clumps. I always use about 3/4 cup (180ml) water. Transfer the pie dough to a floured work surface. Using floured hands, fold the dough into itself until the flour is fully incorporated into the butter pieces. The dough should come together easily and should not feel overly sticky. Form dough into a ball. Divide dough in half. Flatten each half into 1-inch thick discs using your hands. Wrap each tightly in plastic wrap. Refrigerate for at least 2 hours (and up to 5 days) or freeze for up to 3 months. Thaw overnight in the fridge before using.
  2. Make the filling: Mix all of the filling ingredients together in a large bowl. Set aside.
  3. Preheat oven to 375°F (190°C).
  4. Roll out the chilled pie crust: Remove 1 disc of pie dough from the refrigerator.Keep the other in the refrigerator as you work. On a lightly floured work surface, roll the dough out into (roughly) an 18×13-inch rectangle. Make sure to turn the dough about a quarter turn after every few rolls. Carefully place the dough into a 10×15-inch jelly roll pan; there will be overhang on the sides—trim it to be about 1 inch. Smooth the crust out so it fits nicely into all the corners of the pan.
  5. Spread filling evenly on top of crust.
  6. Roll out the 2nd pie dough disc in the same manner and size as the first. Drape over filling and fold the bottom crust’s overhang over the edges. Seal them shut with your fingers and crimp the pie crust edges with a fork. Cut slits into the top of the crust, then brush with a thin coating of egg wash. Sprinkle with coarse sugar.
  7. Bake the slab pie for about 40-46 minutes until the crust is golden brown and you can see the filling bubbling. Remove from the oven and allow to cool on top of a wire rack for a few hours. You can serve this pie a little warm or at room temperature (or cold!).
  8. Before serving, whisk all of the glaze ingredients together and drizzle over pie. Cut into slices and serve. Cover leftovers tightly and store in the refrigerator for up to 3-4 days.

Notes

  1. Make Ahead & Freezing Instructions: The pie crust dough can be made ahead of time and stored in the refrigerator for up to 5 days or in the freezer for up to 3 months. Thaw overnight in the refrigerator before using. Baked pie freezes well for up to 3 months. Thaw overnight in the refrigerator and allow to come to room temperature before serving.
  2. Special Tools (affiliate links): Glass Mixing Bowls | Pastry Cutter | Rubber Spatula or Wooden Spoon |   10×15-inch Jelly Roll Baking Pan | Rolling Pin | Pastry Brush | Cooling Rack
  3. Apples: Use a couple different apple varieties for best flavor—always a tart variety like Granny Smith and a sweeter variety like Pink Lady, Fuji, Honeycrisp, etc.