Apple Slab Pie is a classic, crowd-pleasing dessert made in a large rectangular pan instead of a traditional round pie dish. With a buttery, flaky crust and a generous layer of cinnamon-spiced apples, this dessert is perfect for feeding a group at gatherings, holidays, or potlucks.
It has all the comforting flavors of a traditional apple pie—but in a bigger, shareable format.
Yield and Timing
Serves 12–16 people
Prep time: 25 minutes
Bake time: 40–45 minutes
Ingredients
For the Crust
- 3½ cups all-purpose flour
- 1 teaspoon salt
- 1 tablespoon sugar
- 1½ cups cold butter, cubed
- ¾ cup cold water
For the Apple Filling
- 8–10 apples, peeled, cored, and sliced
- 1 cup granulated sugar
- ½ cup brown sugar
- 2 teaspoons cinnamon
- ¼ teaspoon nutmeg
- 3 tablespoons cornstarch
- 1 tablespoon lemon juice
- 1 teaspoon vanilla extract
For the Top
- 1 egg, beaten (for egg wash)
- 2 tablespoons sugar (for sprinkling)
Preparation
Make the Dough
In a large bowl, mix flour, salt, and sugar.
Cut in cold butter until the mixture resembles coarse crumbs.
Gradually add cold water, mixing until a dough forms.
Divide dough into two portions, wrap, and refrigerate for 30 minutes.
Prepare the Filling
In a large bowl, combine sliced apples, granulated sugar, brown sugar, cinnamon, nutmeg, cornstarch, lemon juice, and vanilla.
Toss until apples are evenly coated.
Assemble the Pie
Preheat oven to 375°F (190°C).
Roll out one portion of dough and fit it into a 10×15-inch baking pan.
Spread the apple filling evenly over the crust.
Roll out the second portion of dough and place it over the top.
Seal the edges and cut small slits in the top for steam to escape.
Brush with egg wash and sprinkle with sugar.
Bake
Bake for 40–45 minutes, or until the crust is golden brown and the filling is bubbling.
Allow to cool before slicing.
Serving Suggestions
Serve warm with:
- Vanilla ice cream
- Whipped cream
- Caramel drizzle
- A cup of coffee or tea
Storage
Store covered at room temperature for up to 2 days, or refrigerate for up to 4 days.
Why This Recipe Is So Popular
Apple Slab Pie is perfect for feeding a crowd without the hassle of making multiple pies. The thin layers of crust and filling create the perfect balance in every bite.
It’s simple, nostalgic, and full of classic homemade flavor.

