The Sheet Pan Apple Pie That Belongs at Every Gathering
There are desserts you make because you have to, and then there are desserts you make because you need them. Apple slab pie firmly belongs in the second category. Picture a buttery, shattering crust — bottom and top — stretched across an entire sheet pan and filled edge to edge with a mountain of tender, cinnamon-spiced apples swimming in brown sugar caramel. It smells like autumn in your kitchen, it looks like a dream, and when you slice it into squares and watch the filling ooze just slightly at the edges, you’ll understand immediately why this is the dessert that disappears first at every potluck, holiday table, and family reunion you’ve ever been to. This is comfort food at its most unapologetic and most generous.
The genius of apple slab pie is that it takes everything you love about a classic deep-dish apple pie — the flaky crust, the warm spiced apple filling, the golden sugar glaze on top — and scales it up to feed a crowd of twenty without any of the fuss of making multiple round pies. A single 10×15-inch sheet pan is your canvas. The crust is rich and buttery, pressed flat rather than fussed with in a round dish, making it genuinely beginner-friendly. The filling is bold: tart Granny Smith apples layered with brown sugar, cinnamon, nutmeg, and a hint of lemon zest to cut through the richness. And that top crust, brushed with an egg wash and dusted with coarse sugar, bakes up shatteringly golden with a satisfying crunch that no fork can resist.
Whether you’re hosting Thanksgiving dinner, a fall block party, or just need something spectacular to bring to a bake sale, this apple slab pie is your answer. It travels beautifully right in the pan, slices into neat squares, and tastes just as magical at room temperature as it does warm. If you love easy, crowd-pleasing bakes like our Pecan Pie Bars or our Classic Pumpkin Pie, you are going to fall completely in love with this one.
Why You’ll Love This Apple Slab Pie
- Feeds a crowd effortlessly. One sheet pan yields up to 20 generous squares — no juggling multiple pies or making multiple batches.
- That crust is everything. Buttery, flaky, and shatteringly crisp on top with a tender underbelly that soaks up the filling just enough without going soggy.
- Bold, spiced apple filling. Brown sugar, cinnamon, nutmeg, and fresh lemon zest make every bite deeply fragrant and complex — not just sweet, but layered.
- Surprisingly easy to make. No blind baking, no fussy pie crimping, no special equipment beyond a rimmed sheet pan. Roll flat, fill, fold, bake.
- Travels like a dream. Stays right in the pan, slices neatly into squares, and holds its shape beautifully for serving at events and potlucks.
- Customizable. Add cranberries for tartness, swap in pears, or drizzle with salted caramel sauce after baking for something truly over-the-top.
Key Ingredients That Make This Apple Slab Pie Irresistible
The foundation of any great slab pie is the crust, and here that means cold unsalted butter — and lots of it. The key is keeping it icy cold right up until it hits the oven so it steams and puffs into those irreplaceable flaky layers. All-purpose flour and a touch of sugar give the crust structure and a gentle sweetness that plays beautifully against the tart filling. For the filling, Granny Smith apples are non-negotiable if you want that classic bold contrast between the sweet crust and a filling with backbone — they hold their shape through baking and deliver a bright tartness that never goes mushy. Brown sugar deepens everything with a molasses warmth that plain white sugar simply cannot replicate, and when it melds with the apple juices during baking, it becomes something close to a butterscotch caramel. Ground cinnamon and nutmeg are the aromatic soul of this pie — use freshly grated nutmeg if you can; it makes a genuinely noticeable difference. A squeeze of fresh lemon juice and its zest might seem minor, but it lifts the entire filling, keeping it bright and balanced rather than cloying. Finally, a quick egg wash brushed over the top crust before baking is what delivers that deep, burnished, bakery-quality golden color that makes this pie photograph beautifully and taste even better.
Pro Tips & Variations for the Best Apple Slab Pie
Keep everything cold. The single biggest secret to a flaky, buttery crust is temperature. Chill your butter, chill your water, and if your kitchen is warm, even chill the flour. If the dough warms up while you’re rolling it, pop it back in the fridge for 10–15 minutes before proceeding. According to the pastry experts at Serious Eats, maintaining cold fat in your pie dough is the number one factor that separates an average crust from a spectacular one.
Mix your apple varieties. While Granny Smith is the workhorse here, blending in a couple of Honeycrisp or Braeburn apples adds nuance — a little more sweetness and a slightly softer texture that contrasts beautifully with the tart Granny Smiths. Aim for about 70% Granny Smith, 30% sweet variety.
Don’t skip the cornstarch. It’s the secret to a filling that’s luscious and saucy without being soupy. It binds the apple juices into a glossy, thick coating that clings to every slice rather than pooling on your sheet pan.
Use coarse sugar on top. Turbinado or demerara sugar sprinkled over the egg wash gives the top crust a glittering, crunchy finish that looks stunning and adds a subtle toffee crunch with every bite.
Salted caramel drizzle variation: For a truly indulgent finish, drizzle warm homemade or store-bought salted caramel sauce over the top of the pie as soon as it comes out of the oven. The caramel seeps into the steam vents and creates pockets of gooey, salty-sweet richness throughout.
Add-ins to consider: A handful of dried cranberries or golden raisins stirred into the apple filling adds chew and tartness. A pinch of cardamom or allspice alongside the cinnamon and nutmeg gives a more complex, warming spice profile. And if you want a flavor twist, Food Network’s take on apple slab pie suggests brushing the bottom crust with a thin layer of Dijon mustard before adding the filling — sounds strange, but it adds a subtle savory depth that makes the sweetness pop.
Make it ahead: You can assemble the entire pie — crust and filling — up to 24 hours in advance and keep it tightly covered in the refrigerator. Bake it straight from the fridge; you may need to add 5–8 minutes to the bake time. The baked pie also keeps beautifully at room temperature for up to two days, making it perfect for entertaining prep.
If you love baking for a crowd, you might also enjoy our Butter Cookies — simple, fast, and endlessly crowd-pleasing alongside a warm slice of this pie.
Nutritional Highlights
Each square of this apple slab pie comes in at approximately 320 calories, making it a genuinely satisfying dessert that earns its place on the table. Apples are of course a natural source of dietary fiber and vitamin C, and the cinnamon-forward spice blend has long been associated with blood sugar regulation. Yes, this is an indulgent dessert — that butter is real, that brown sugar is generous, and we’re not apologizing for it. But served as a square rather than a towering pie slice, the portion is naturally moderate, which is one of the quiet benefits of the slab format. Pair with a small scoop of vanilla ice cream or a dollop of lightly sweetened whipped cream and you have a dessert that feels like pure luxury without completely derailing your day.
The Dessert That Always Gets Requested Again
Apple slab pie is one of those recipes that earns a permanent spot in your rotation after the very first time you make it. It’s the kind of dessert people ask you about before you’ve even finished cutting it — “What IS this? Can I have the recipe?” — and then request by name at every gathering that follows. It hits every note: the crunch of that egg-washed golden crust, the fragrant warmth of cinnamon and brown sugar, the tender-tart bite of perfectly spiced apples, and the sheer generous abundance of a pan that feeds twenty. It’s comfort food at its most crowd-pleasing and its most irresistible.
We’d love to see your apple slab pie! Share a photo in the comments below or tag us on social media — there is nothing we love more than seeing this beauty fresh from your oven. Save this recipe to your Pinterest baking board so you always have it on hand when a crowd comes calling.
Find the complete recipe card below ↓
Apple Slab Pie
Equipment
- 10x15-inch rimmed jelly roll pan (half-sheet pan)
- Rolling pin
- Large mixing bowl
- Pastry cutter or food processor
- Vegetable peeler and apple corer
- Pastry brush
- Parchment paper
Ingredients
For the Crust
- 4 cups all-purpose flour plus more for dusting
- 2 tbsp granulated sugar
- 1.5 tsp fine sea salt
- 1.5 cups unsalted butter 3 sticks, very cold, cut into ½-inch cubes
- 10 tbsp ice water more as needed, 1 tbsp at a time
For the Apple Filling
- 5 lbs Granny Smith apples about 10–11 medium, peeled, cored, and sliced ¼-inch thick
- 1 lb Honeycrisp or Braeburn apples about 2 large, peeled, cored, and sliced ¼-inch thick
- 1 cup packed light brown sugar
- 3 tbsp granulated sugar
- 3 tbsp cornstarch
- 2 tsp ground cinnamon
- 0.5 tsp freshly grated nutmeg
- 0.25 tsp ground allspice
- 0.25 tsp fine sea salt
- 1 tbsp fresh lemon juice
- 1 tsp lemon zest
- 2 tbsp unsalted butter cut into small cubes, to dot over filling
For the Egg Wash & Topping
- 1 large egg
- 1 tbsp whole milk
- 2 tbsp turbinado or demerara sugar for sprinkling on top crust
Instructions
Make the Crust Dough
- In a large bowl, whisk together flour, sugar, and salt. Add the cold butter cubes and use a pastry cutter (or your fingertips) to cut the butter into the flour until the mixture resembles coarse crumbs with pea-sized pieces of butter throughout. Do not overwork — visible butter chunks are what create flaky layers.
- Add ice water 2 tablespoons at a time, stirring with a fork after each addition, until the dough just barely comes together when you pinch a piece. You may need anywhere from 8–12 tablespoons total. The dough should be shaggy, not smooth.
- Turn the dough out onto a lightly floured surface and divide it into two pieces — one slightly larger than the other (about 55% and 45%). Flatten each into a rectangle, wrap tightly in plastic wrap, and refrigerate for at least 1 hour or up to 2 days.
Make the Apple Filling
- Peel, core, and slice all apples to about ¼-inch thickness. Place in a very large bowl.
- Add the brown sugar, granulated sugar, cornstarch, cinnamon, nutmeg, allspice, salt, lemon juice, and lemon zest. Toss thoroughly until every apple slice is evenly coated. Let the mixture sit for 10 minutes — it will release juices and the sugars will dissolve into a glossy coating. This is good.
- Taste the filling and adjust spices if desired. Set aside while you roll out the crust.
Assemble the Slab Pie
- Preheat your oven to 400°F (205°C). Line a 10×15-inch rimmed jelly roll pan with parchment paper and lightly spray with nonstick cooking spray.
- On a lightly floured surface, roll the larger piece of dough into a rectangle roughly 13×18 inches — large enough to cover the bottom and sides of the pan with about 1 inch of overhang. Roll the dough gently around your rolling pin and carefully unroll it over the pan. Press it into the corners and up the sides. Trim any excess, leaving about a ¾-inch overhang around the rim.
- Pour the apple filling evenly over the bottom crust, spreading it into an even layer. Dot the top of the filling with the small cubes of butter.
- Roll the second piece of dough into an 11×16-inch rectangle and lay it over the top of the filling. Tuck the top crust edges under the overhanging bottom crust and crimp together all around the edge, pressing firmly to seal. Cut about 15–20 steam vents across the top crust using a sharp knife or the tip of scissors.
Bake & Finish
- Whisk together the egg and milk to make the egg wash. Brush the entire top crust generously with the egg wash, making sure to coat the crimped edges too. Sprinkle turbinado sugar evenly over the top.
- Bake at 400°F for 20 minutes, then reduce the oven temperature to 375°F and continue baking for 28–32 minutes more, until the crust is deep golden brown and the filling is bubbling actively through the steam vents.
- Remove from the oven and let the slab pie cool on a wire rack for at least 30–45 minutes before cutting into squares. This rest time allows the filling to set so it doesn't run when sliced. Cut into 4×5 rows for 20 squares. Serve warm or at room temperature.