Home-baked Apple Slab Pie Recipe

Home-baked Apple Slab Pie Recipe tastes like a cross between classic apple pie and a bakery-style toaster pastry, with buttery, flaky crust and jammy, cinnamon apples in every bite. It works perfectly for potlucks, holidays, and big family dinners, and you can pull it off in about 1 hour 45 minutes, start to finish. I grew up in a house where dessert counted as a love language, so this kind of big-batch pie feels like home to me.

Why Home-baked Apple Slab Pie Recipe Is Worth It

This apple slab pie feeds a crowd without demanding bakery-level skills. You roll one big rectangle of dough, pile on the apples, top it, and bake, so the process stays simple but the payoff looks impressive on the table.

The crust bakes up flaky and crisp on the bottom, so it actually holds a slice in your hand like a bar. You also slice it into neat squares, which makes serving way easier than wrestling with wedges from a round pie pan.

“This Home-baked Apple Slab Pie Recipe stole the show at our family gathering and vanished in minutes. ★★★★★”

Ingredients You Need

For the crust (sheet-pan pie dough)

• 3 cups (360 g) all-purpose flour
• 2 tablespoons granulated sugar
• 1 teaspoon fine sea salt
• 1 cup (2 sticks / 226 g) cold unsalted butter, cut into small cubes
  • Use a good-quality butter like Kerrygold or Plugrá if you want extra flavor, but any real butter works.
• 1/2 cup (120 ml) ice water, plus 1–3 tablespoons more as needed
• 1 tablespoon apple cider vinegar or white vinegar
  • This helps tenderize the dough and keeps gluten from tightening up.

Shortcut option:

• Two boxes of store-bought refrigerated pie crust (4 crusts total) work in a pinch. You just overlap and press them together into a rectangle on the sheet pan.

For the apple filling

• 3 1/2 pounds (about 8 medium) firm baking apples, peeled, cored, and sliced 1/4-inch thick
  • Mix tart and sweet apples for best flavor: Honeycrisp, Granny Smith, Pink Lady, Braeburn, or Fuji.
• 3/4 cup (150 g) granulated sugar
• 1/4 cup (50 g) light brown sugar, packed
• 1/4 cup (30 g) cornstarch
  • You can swap with 1/3 cup flour if needed, but the filling turns slightly cloudier.
• 1 1/2 teaspoons ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1/4 teaspoon ground allspice (optional but tasty)
• 1/4 teaspoon fine sea salt
• 2 teaspoons lemon juice
• 1 teaspoon vanilla extract
• 2 tablespoons unsalted butter, cut into tiny pieces

For the egg wash & topping

• 1 large egg
• 1 tablespoon milk or heavy cream
• 1–2 tablespoons coarse sugar (turbinado or demerara) for sprinkling

Equipment list

• 13×18-inch rimmed baking sheet (standard half-sheet pan)
• Parchment paper
• Rolling pin
• Large mixing bowls
• Measuring cups and spoons or a kitchen scale
• Sharp knife or mandoline for slicing apples
• Pastry brush
• Fork for crimping edges
• Cooling rack

Quick Tips & substitutions

• Chill the dough at every stage so the butter stays cold and the crust bakes flaky.
• Use a mix of tart and sweet apples so the filling tastes balanced and not flat.
• Slice apples evenly so they cook at the same rate and the slab pie cuts cleanly.
• Swap cornstarch with flour if needed, but add about 1 extra tablespoon to thicken the juices.
• Use store-bought pie crust when you feel short on time; just patch and press seams well.
• Add a tablespoon of lemon zest if you like a brighter, more citrusy apple flavor.
• Use plant-based butter and a dairy-free milk wash if you need a dairy-light version.
• Keep the bottom of the slab pie crisp by baking on a preheated sheet pan or the lower oven rack.
• Tent the top with foil if it browns too quickly while the apples finish cooking.

How to Make Home-baked Apple Slab Pie Recipe

Step 1: Mix and chill the dough

Stir the flour, sugar, and salt together in a large bowl. Toss the cold butter cubes in the flour, then cut them in with a pastry cutter or your fingers until you see pea-sized bits and some larger, flat pieces.

Stir the vinegar into the ice water, then drizzle it over the flour mixture while you toss with a fork. Press the dough together with your hands and add a tablespoon or two more water only if it looks dry and crumbly.

Divide the dough into two pieces, one slightly larger than the other, and shape each into a rectangle. Wrap both tightly in plastic or a reusable wrap and chill them in the fridge for at least 1 hour.

Step 2: Prep the apples

Peel, core, and slice the apples into 1/4-inch thick slices and place them in a big bowl. Sprinkle in the granulated sugar, brown sugar, cornstarch, cinnamon, nutmeg, allspice, and salt.

Add the lemon juice and vanilla, then toss everything until the apples look evenly coated and glossy. Set the bowl aside while you roll the dough so the apples release a little juice and the flavors mingle.

Step 3: Roll out the bottom crust

Line your half-sheet pan with parchment paper. Lightly flour your counter and roll the larger piece of dough into a rectangle about 18×13 inches, or just a bit bigger than your pan.

Drape the dough over the rolling pin and lay it into the pan, pressing it gently into the corners and up the sides. Trim any extreme overhang, but leave about 1/2 inch around the edges so you can seal the top crust later.

Step 4: Fill with the apple mixture

Give the apples one more toss, then pour them into the crust-lined pan. Spread them into an even layer from edge to edge so every slice of slab pie gets plenty of fruit.

Dot the top of the apples with the small pieces of butter. This butter melts into the juices and adds rich flavor and shine to the filling.

Step 5: Roll and add the top crust

Roll the second piece of dough into a rectangle just a little smaller than the first, about the size of the inner pan dimensions. Lift it carefully and lay it over the apples.

Fold the bottom crust edge up over the top crust and pinch or crimp with a fork all the way around to seal. Cut several slits in the top crust with a sharp knife so steam can escape and the crust stays crisp.

Step 6: Add egg wash and sugar

Beat the egg with the milk or cream in a small bowl. Brush this mixture over the entire top crust, including the edges.

Sprinkle coarse sugar generously over the top so it bakes with a sweet, crunchy finish. This step also gives the slab pie that bakery-style golden sheen.

Step 7: Bake the slab pie

Heat your oven to 400°F (200°C) while the slab pie rests in the fridge for about 15 minutes. This quick chill helps the crust hold its shape and keeps the butter cold.

Slide the pan into the oven on the lower-middle rack and bake 35–45 minutes. The crust should look deep golden brown and the apple juices should bubble thickly through the slits.

If the edges brown too fast, cover them loosely with strips of foil and keep baking until the center bubbles. Pull the slab pie out and place the pan on a cooling rack.

Step 8: Cool and slice

Let the apple slab pie cool at least 45–60 minutes before you slice it. The filling thickens as it cools, which helps you cut neat squares instead of apple lava.

Use a sharp knife to cut the slab pie into 12–24 pieces, depending on how big you want the servings. Serve warm or at room temperature with your favorite toppings.

Recipe Variations

• Gluten-free: Use a 1:1 gluten-free baking flour blend for the crust and add an extra tablespoon of cold water if the dough feels dry.
• Vegan: Use plant-based butter, skip the egg, and brush the top with non-dairy milk; use organic sugar if you watch processing methods.
• Low sugar: Cut the sugar in the filling by one-third and lean on naturally sweeter apples like Fuji and Gala.
• Spiced chai twist: Add 1/2 teaspoon cardamom and 1/4 teaspoon ground cloves to the filling for a cozy chai vibe.
• Caramel apple slab pie: Drizzle 1/3 cup thick caramel sauce over the apples before you add the top crust.
• Crumble-topped slab pie: Skip the top crust and use a streusel of oats, brown sugar, flour, and butter instead.
• Nutty crunch: Sprinkle 1/2 cup chopped toasted pecans or walnuts over the apples before you cover them.

Ways to Serve Home-baked Apple Slab Pie Recipe

• Serve warm with a scoop of vanilla ice cream or dairy-free vanilla frozen dessert.
• Add a spoonful of whipped cream or coconut whipped cream and a dusting of cinnamon.
• Pack cooled squares into lunchboxes as a fun dessert bar.
• Plate small squares with a side of fresh apple slices for a snack-style treat.
• Serve at brunch with coffee, hot cider, or tea.

Storage Success

Let the Home-baked Apple Slab Pie Recipe cool completely, then cover the pan tightly with foil or transfer slices to an airtight container. Keep it at room temperature for up to 2 days, or refrigerate it for up to 4 days. Reheat slices in a 325°F (165°C) oven for 8–10 minutes so the crust turns crisp again. Freeze individual slices, well wrapped, for up to 2 months and warm them straight from the freezer in the oven until hot and bubbly.