
This Apple Slab Pie is a buttery, flaky pie crust piled high with spiced apple filling and baked in a sheet pan, perfect for feeding a crowd at any fall gathering.

If you love the cozy flavors of a classic apple pie but dread the thought of rolling out multiple crusts, this Apple Slab Pie is about to become your new favorite fall dessert. It takes everything wonderful about homemade apple desserts, that flaky, buttery crust and warmly spiced apple filling, and stretches it across a full sheet pan so you can feed a crowd without any extra fuss. Think of it as apple pie meets apple crisp with pie crust, but even easier to slice and serve.
Whether you're hosting a holiday dinner, bringing a dessert to a potluck, or just craving one of the best fall pies recipes easy enough for a weeknight, this recipe delivers big flavor with minimal stress.
Before we get cooking, the right tools and ingredients make a real difference here. A sturdy rimmed baking sheet, a reliable pastry cutter, and good quality butter are what separate an average crust from a truly flaky one. These are the products that genuinely help this recipe shine:
A traditional apple pie is wonderful, but a slab pie has some real advantages. Because it bakes in a rectangular sheet pan instead of a round dish, you get:
This is one of those recipes with pie filling that feels familiar yet feels like a fresh twist on tradition, which is exactly why it has become such a popular choice among homemade apple desserts.
Chef's Tip: Use a mix of tart and sweet apples, like Granny Smith and Honeycrisp. The tart apples hold their shape during baking while the sweet ones add natural caramel like flavor.
The secret to any great pie, slab or otherwise, comes down to keeping your ingredients cold. Cold butter creates little pockets of steam as it bakes, which is what gives you that irresistibly flaky texture. If your kitchen is warm, pop your mixing bowl and butter in the freezer for 10 minutes before you start.
This dough recipe makes enough for both the bottom and top layers, so you truly get a one crust apple pie experience doubled, more crust, more flavor, more of what people love about apple pie in the first place. If you're in a hurry, this is also a fantastic base for easy apple pie crust shortcuts using store-bought dough, just be sure to piece it together carefully to cover the full pan.
Apples release a lot of juice as they bake, so tossing them with cornstarch is essential. It thickens the filling into that glossy, jammy texture you want, rather than a soupy mess. A touch of lemon juice brightens the flavor and helps keep the apple slices from browning while you work.
Chef's Tip: Let the sliced apples sit with the sugar and spices for about 10 minutes before assembling. This draws out extra juice, which you can drain slightly if you prefer a firmer, less runny filling.
Rolling out dough to fit a full sheet pan can feel intimidating the first time, but it is easier than it looks. Roll the dough slightly larger than your pan, then gently fold it in half or use your rolling pin to help transfer it without tearing. Don't worry about a perfectly neat edge, crimping hides a multitude of small imperfections.
For the top layer, you can go with a full sheet of dough, a lattice pattern, or even simple decorative cutouts using leftover scraps. Whichever you choose, that egg wash is what gives the crust its beautiful golden brown finish.
Ready to make it? Here is the full step-by-step recipe:

This Apple Slab Pie is a buttery, flaky pie crust piled high with spiced apple filling and baked in a sheet pan, perfect for feeding a crowd at any fall gathering.
In a large bowl, whisk together the flour, 2 tablespoons sugar, and 1/2 teaspoon salt. Cut in the cold cubed butter using a pastry cutter or your fingers until the mixture resembles coarse crumbs with pea sized pieces of butter remaining.
Drizzle in the ice water, 1 tablespoon at a time, mixing gently until the dough just comes together. Divide into two slightly uneven discs, wrap in plastic, and refrigerate for at least 1 hour.
Preheat the oven to 400 degrees F (200 degrees C). Line a 13x18 inch rimmed baking sheet with parchment paper.
In a large bowl, toss the sliced apples with the granulated sugar, brown sugar, cinnamon, nutmeg, cornstarch, lemon juice, and remaining 1/2 teaspoon salt until evenly coated.
On a floured surface, roll the larger dough disc into a rectangle about 18x13 inches. Carefully transfer it to the prepared baking sheet, letting the edges hang slightly over the sides.
Spread the apple filling evenly over the crust, along with any juices that have collected in the bowl.
Roll out the second dough disc into a rectangle roughly 16x11 inches and lay it over the apples, or cut it into strips for a lattice top. Trim and crimp the edges to seal.
Brush the top crust generously with the egg wash and cut a few small slits to allow steam to escape.
Bake for 40 to 45 minutes, until the crust is deep golden brown and the filling is bubbling. Tent loosely with foil if the crust browns too quickly.
Cool on the baking sheet for at least 1 hour before slicing. Whisk together the powdered sugar and milk, then drizzle over the pie before serving if desired.
Once baked, resist the urge to slice right away. Apple slab pie needs a full hour to cool so the filling can set properly, otherwise you'll end up with a delicious but slightly messy plate. A light drizzle of powdered sugar glaze adds a lovely finishing touch, though it's completely optional if you prefer a more classic, unglazed look.
This recipe is easy to adapt too. Try adding a handful of dried cranberries or chopped pecans to the filling, or swap half the apples for pears for a fun variation. However you make it, this slab pie is proof that some of the best fall pies recipes easy enough for beginners can still taste like they came straight from a professional bakery.