1½ teaspoons ground cinnamon
¼ teaspoon ground nutmeg, optional
1 tablespoon lemon juice
1 teaspoon vanilla extract
Pinch of salt
For the Egg Wash
1 large egg
1 tablespoon milk or water
1 tablespoon coarse sugar, optional
How to Make Apple Slab Pie
Step 1: Prepare the Pastry
In a large bowl, combine the flour, salt, and granulated sugar. Add the cold butter and work it into the flour using a pastry cutter or your fingertips until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining.
Add the ice water one tablespoon at a time, mixing gently until the dough begins to hold together. You may not need all the water.
Divide the dough into two portions, making one slightly larger than the other. Shape each into a flat disk, wrap, and refrigerate for at least 30 minutes.
Keeping the butter cold helps create a flaky crust, so avoid kneading the dough excessively.
Step 2: Prepare the Apple Filling
Peel, core, and slice the apples into fairly even pieces. Place them in a large bowl and toss with the lemon juice.
Add the granulated sugar, brown sugar, flour, cinnamon, nutmeg if using, vanilla, and salt. Stir until the apples are evenly coated.
Choose firm baking apples that hold their shape during cooking. Granny Smith apples provide a tart flavor, while varieties such as Honeycrisp or Braeburn offer a sweeter balance. A mixture of tart and sweet apples works especially well.
Step 3: Roll Out the Bottom Crust
Preheat your oven to 375°F (190°C).
Lightly flour your work surface and roll out the larger portion of dough into a rectangle large enough to cover the bottom and sides of a 10-by-15-inch rimmed baking sheet.
Transfer the pastry carefully to the pan, pressing it gently into the corners. Leave a little overhang around the edges so you can seal the top crust later.
If the dough becomes too soft or sticky, return it to the refrigerator for a few minutes before continuing.
Step 4: Add the Apple Filling
Spread the apple mixture evenly over the bottom crust. Distribute the apples across the pan so that the filling cooks at a consistent rate.
If the apples release a large amount of liquid while sitting in the bowl, avoid pouring all the excess liquid into the pastry. Too much moisture can make the bottom crust soggy.
Step 5: Add the Top Crust
Roll out the remaining dough into a rectangle large enough to cover the filling. Carefully place it over the apples.
Trim away excess pastry, leaving enough to seal the edges. Pinch the top and bottom crusts together, then crimp with your fingers or a fork.
Cut several small slits in the top crust to let steam escape during baking. This helps the filling cook properly and reduces the chance of the crust becoming overly wet.
Step 6: Brush and Finish
Whisk the egg with the milk or water to make an egg wash. Brush a thin layer over the top crust.
If desired, sprinkle coarse sugar over the surface for a little extra crunch and sparkle.
For a decorative finish, you can cut the top pastry into strips and arrange them in a lattice pattern instead of using a solid sheet.
Step 7: Bake Until Golden
Place the pan in the preheated oven and bake for approximately 40–55 minutes, or until the crust is golden brown and the filling is bubbling through the vents.
Baking time can vary depending on the thickness of the apples, your pan, and your oven. If the edges brown too quickly, cover them loosely with foil while the center finishes cooking.
The apples should be tender when pierced with a small knife, not firm or crunchy.
Step 8: Cool Before Slicing
Remove the slab pie from the oven and place the pan on a cooling rack. Allow it to cool for at least 1½–2 hours before cutting.
Cooling gives the filling time to thicken, making it easier to cut neat squares without the apples sliding out. Serve at room temperature or warm individual portions gently before serving.
Tips for the Best Apple Slab Pie
Choose apples that hold their shape. Firm baking apples help prevent the filling from turning into applesauce.
Slice the apples evenly. Uniform slices cook at a similar rate, so you won't end up with some pieces that are soft and others that remain firm.
Keep the pastry cold. Warm dough can become difficult to handle and may produce a less flaky crust. Chill it whenever it becomes soft.
Don't skip the steam vents. Small openings in the top crust allow moisture to escape as the filling cooks.
Let the pie cool completely. Cutting too soon can cause the filling to run. If you want tidy squares for a party, give the pie plenty of time to set.
Watch the crust near the end. If it looks golden before the filling is ready, loosely cover the browned areas with foil.
Delicious Variations to Try
Apple Crumble Slab Pie
If you prefer a crunchy topping, skip the top pastry and scatter a crumble mixture over the apples. Combine ¾ cup flour, ½ cup brown sugar, ½ teaspoon cinnamon, and 6 tablespoons cold butter until crumbly. Bake until the topping is golden and the apples are tender.
Caramel Apple Slab Pie
Drizzle caramel sauce over the cooled pie just before serving. You can also add a small amount of caramel between the apples and top crust, but avoid adding too much liquid to the filling.
Apple Pecan Slab Pie
Stir ½ cup chopped pecans into the apple mixture for a little crunch. Toasting the pecans beforehand can deepen their flavor.
Apple Cranberry Slab Pie
Add ½–¾ cup dried cranberries to the filling for a sweet-tart variation that works particularly well during the holiday season.
Easy Glazed Apple Slab Pie
For a simple finish, whisk ½ cup powdered sugar with 1–2 teaspoons milk until smooth. Drizzle over the cooled crust and allow the glaze to set before slicing.
What to Serve With Apple Slab Pie
Apple slab pie is delicious on its own, but a few simple additions can make it feel extra special.
A scoop of vanilla ice cream
Freshly whipped cream
A drizzle of warm caramel sauce
A cup of coffee, tea, or hot apple cider
A sprinkle of cinnamon just before serving
For a holiday dessert table, serve it alongside pecan pie, pumpkin pie, or other seasonal favorites.
How to Store Apple Slab Pie
Allow the pie to cool completely before storing it.
At room temperature: Because this filling contains fresh fruit and moisture, refrigerating leftovers is the safer choice for extended storage. If serving at room temperature, avoid leaving the pie out for more than two hours.
In the refrigerator: Cover the pan or transfer the slices to an airtight container. Refrigerate for up to 4 days for best quality.
In the freezer: Wrap individual slices or portions tightly and place them in a freezer-safe container. Freeze for up to 3 months for best quality.
To reheat, place a slice in a 300–325°F (150–165°C) oven until warmed through. This helps the pastry regain some crispness. Thaw frozen slices in the refrigerator before reheating for more even results.
Frequently Asked Questions
Can I make apple slab pie ahead of time?
Yes. Bake the pie a day ahead, let it cool, and refrigerate it covered. Warm individual slices in the oven before serving if you prefer a freshly baked texture.
What are the best apples for slab pie?
Granny Smith, Honeycrisp, Braeburn, and similar firm baking apples are good choices. Combining tart apples with sweeter varieties creates a balanced filling.
Why is my apple slab pie watery?
Excess liquid can come from particularly juicy apples, overly thick slices that need more cooking, or too much liquid being added to the filling. Tossing the apples with flour and allowing the pie to cool fully can help the filling thicken.
Can I use store-bought pie crust?
Absolutely. Refrigerated pie dough is a convenient alternative when you're short on time. You may need several packages to cover both the bottom and top of a large rectangular pan, so check the amount of dough available before starting.
How do I know when the pie is done?
Look for a golden crust, bubbling filling, and apples that are tender when pierced through a vent. If the top browns too quickly, loosely cover it with foil and continue baking until the filling is cooked.
A Classic Dessert Made for Sharing
Apple slab pie brings all the familiar pleasures of traditional apple pie to a pan that's easy to serve at family dinners, holiday celebrations, and casual get-togethers. With a buttery crust, cinnamon-spiced apples, and a little patience while it cools, you'll have a homemade dessert that looks inviting and tastes even better.
Make it with homemade pastry when you have time, or reach for refrigerated dough when you need a shortcut. Add caramel, pecans, or a sweet glaze to make it your own.
However you serve it, this apple slab pie is a lovely reminder that simple ingredients can create something worth gathering around.
Have you tried apple slab pie before? Share your favorite apple variety or the special topping you love to add to homemade apple pie!
