Apple pie is a dessert with a long and beloved history, but sometimes the familiar round version just isn’t enough. Whether you’re feeding a crowd, preparing for a potluck, or simply craving a dessert that slices cleanly and serves beautifully, an Apple Slab Pie delivers everything you love about the traditional dish—just bigger, bolder, and with more room for creativity. This version offers buttery, flaky layers, a deeply caramelized apple filling, and a playful streusel twist that makes it unforgettable.
What makes this slab pie unique is the combination of textures: crisp bottom crust, tender apple filling, a top crust that’s part lattice and part crumble, and a finishing glaze that catches the light like sugar on autumn leaves. It’s rustic, charming, and impressive all at once.
Ingredients
For the Crust
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3 ½ cups all-purpose flour
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1 tablespoon granulated sugar
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1 teaspoon fine sea salt
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1 ½ cups cold unsalted butter, cubed
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¾ cup ice water (more if needed)
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1 teaspoon apple cider vinegar
For the Filling
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8 cups peeled, thinly sliced apples (a mix of Honeycrisp, Granny Smith, and Fuji works best)
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¾ cup light brown sugar
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¼ cup granulated sugar
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3 tablespoons cornstarch
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1 tablespoon lemon juice
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1 tablespoon vanilla extract
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1 ½ teaspoons cinnamon
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¼ teaspoon freshly grated nutmeg
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¼ teaspoon ground cardamom (optional, but highly recommended)
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¼ teaspoon salt
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3 tablespoons unsalted butter, melted
For the Streusel Topping
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¾ cup all-purpose flour
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½ cup rolled oats
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½ cup brown sugar
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½ teaspoon cinnamon
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6 tablespoons cold unsalted butter, cubed
Finishing Touch
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1 egg beaten with 1 tablespoon milk (egg wash)
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½ cup powdered sugar
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1–2 tablespoons apple cider
Instructions
1. Prepare the Crust
Begin by whisking together the flour, sugar, and salt in a large bowl. Add the cold butter and work it in with a pastry cutter or your fingertips until the mixture resembles coarse crumbs with scattered pea-sized butter bits. The key to a flaky crust is keeping those butter pockets intact—so resist the urge to overwork it.
Combine the ice water and apple cider vinegar, then drizzle it into the flour mixture a little at a time. Gently mix until the dough just comes together. Divide it into two portions, one slightly larger for the bottom crust. Flatten each into a rectangle, wrap tightly, and refrigerate for at least one hour.
2. Make the Apple Filling
In a large mixing bowl, toss together the sliced apples, both sugars, cornstarch, lemon juice, vanilla, cinnamon, nutmeg, cardamom, and salt. Pour over the melted butter and stir until the apples are coated and glossy. Let the mixture sit for 10–15 minutes. This brief resting helps the apples release some of their natural juices and ensures the filling thickens perfectly in the oven.
3. Roll Out the Crust
Preheat your oven to 400°F (200°C). Line a 10×15-inch baking sheet with parchment paper.
On a lightly floured surface, roll out the larger dough portion into a rectangle several inches bigger than your pan. Carefully lay it into the sheet, allowing a bit of overhang on all sides. This ensures your slab pie holds all that luscious filling without collapsing.
Roll out the smaller dough portion into strips for a rustic lattice, or leave it whole if you prefer a more traditional top crust. For this unique version, we’re doing both—a partial lattice draped diagonally across the pie, leaving room for a crumble topping.
4. Add the Filling and Toppings
Spoon the apple filling onto the crust and spread it evenly. Arrange your lattice strips over the top at an angle so they cover about half the pie.
Next, prepare the streusel: Mix the flour, oats, brown sugar, and cinnamon, then cut in the butter until the mixture forms chunky crumbs. Scatter the streusel across the uncovered portion of the pie for a beautiful contrast of textures.
Brush the visible lattice strips with egg wash to help develop a golden sheen.
5. Bake to Perfection
Bake the slab pie for 40–50 minutes. The crust should be a deep golden brown, the streusel toasted, and the apple filling bubbling. If the edges begin to darken too quickly, tent the pie loosely with foil.
Let the pie cool for at least 30 minutes. This resting time allows the filling to set and ensures clean slices.
6. Glaze and Serve
Whisk together powdered sugar and apple cider until smooth and drizzle over the cooled pie. The glaze adds a sweet tang that brightens the warm spices.
Cut into squares and serve just as they are or alongside vanilla ice cream, whipped cream, or a drizzle of warm caramel.
Why This Apple Slab Pie Is Special
What sets this recipe apart is the interplay of textures and flavor profiles. The crisp bottom crust supports a filling that is both gooey and structured, thanks to the cornstarch-lemon-spice trio. The combination of lattice and streusel gives each bite a unique character—sometimes buttery and flaky, sometimes crunchy and cinnamon-kissed. And the apple cider glaze provides a finishing accent that pulls the entire dessert together.
This slab pie offers the heart of a traditional apple pie but reimagined to be more festive, more shareable, and more visually exciting. It’s the kind of dessert that brings people together around a table, forks in hand, ready to savor the first slice.
