Delicious Apple Slab Pie

Last Thanksgiving, my tiny apartment kitchen could not handle another round pie. The oven was already spoken for by three different dishes, and my roommate had claimed every spare inch of counter space. Thats when I discovered the absolute genius of slab pie baked in a simple rimmed sheet pan instead of those fussy individual pie plates.

The first time I served this at a family reunion, my uncle actually went back for fourths. He stood by the counter with the serving spatula, pretending to help clean up while casually shaving off slivers. Now it is the one thing everyone specifically requests.

Ingredients

• 3 1/2 cups all-purpose flour: The foundation of a sturdy yet tender crust that holds up to all those juicy apples
• 1 tablespoon granulated sugar: Just enough sweetness in the dough to balance the salt and enhance browning
• 1 1/2 teaspoons salt: Enhances flavor and helps strengthen the gluten structure
• 1 1/2 cups cold unsalted butter, cubed: Keep it ice cold this is what creates those beautiful flaky layers
• 1/2 cup ice water: Add gradually until the dough just comes together, handling it as little as possible
• 8 medium apples: A mix of Granny Smith for tartness and Honeycrisp for sweetness creates the best balance
• 2/3 cup granulated sugar: Sweetens the filling while letting the apple flavor shine through
• 1/3 cup light brown sugar: Adds caramel notes and depth to the apple mixture
• 1 1/2 teaspoons cinnamon: Warm spice that pairs perfectly with apples
• 1/4 teaspoon nutmeg: Subtle background warmth that complements the cinnamon
• 1/4 teaspoon salt: Balances sweetness and enhances all the spice flavors
• 3 tablespoons cornstarch: Thickens the apple juices so you get a perfect slice instead of a soggy mess
• 2 teaspoons lemon juice: Prevents apples from browning and adds brightness
• 1 egg beaten with 1 tablespoon milk: Creates that gorgeous golden finish on the crust
• Coarse sugar: Optional but adds a wonderful crunch and sparkle to the top

Instructions

Get your oven and pan ready:

Preheat to 400°F and line a 10x15 inch rimmed baking sheet with parchment paper

Make the crust dough:

Mix flour sugar and salt then cut in cold butter until you have coarse crumbs

Bring the dough together:

Drizzle in ice water a tablespoon at a time until the dough holds together when squeezed

Divide and chill briefly:

Split dough into two pieces with one slightly larger and let rest while you prep the filling

Prepare the apple filling:

Toss sliced apples with both sugars cinnamon nutmeg salt cornstarch and lemon juice

Roll out the bottom crust:

On a floured surface roll the larger dough piece to fit your pan and press it in

Layer the apples:

Spread the apple mixture evenly over the bottom crust

Add the top crust:

Roll remaining dough place over apples trim edges and pinch to seal

Finish the surface:

Cut steam vents brush with egg wash and sprinkle with coarse sugar

Bake until golden:

Bake 35 to 40 minutes until deeply golden and filling is bubbling

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My grandmother used to say that a pie is just a hug in crust form. This slab pie proved her right, turning an ordinary Sunday dinner into something people still talk about months later.

Making It Ahead

You can assemble the entire slab pie up to a day ahead and refrigerate it unbaked. Add a few extra minutes to the baking time if baking cold from the refrigerator. The crust actually benefits from the rest time.

Serving Suggestions

Warm slices are absolutely divine with a scoop of vanilla bean ice cream that melts into all the nooks and crannies. A dollop of lightly sweetened whipped cream works beautifully too.

Storage and Freezing

Leftovers keep remarkably well covered at room temperature for up to two days though they rarely last that long. For longer storage wrap individual portions and freeze up to three months.

• Reheat frozen slices at 350°F for about 10 minutes
• The crust will stay flaky if reheated in the oven not the microwave
• Room temperature pieces make an incredible breakfast with coffee

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There is something deeply satisfying about cutting perfect square slices from a slab pie and watching people reach for seconds. This recipe might just become your most requested dessert too.

Recipe FAQs

→ What makes slab pie different from regular pie?

Slab pie is baked in a rectangular rimmed baking sheet instead of a round pie dish. This creates a larger surface area, yielding more servings with a higher ratio of flaky crust to filling—perfect for feeding crowds.

→ Which apple varieties work best?

Granny Smith and Honeycrisp apples are ideal because they hold their shape during baking while becoming tender. Mixing varieties creates balanced flavor and texture—some tart, some sweet.

→ Can I make this ahead of time?

Yes! Prepare the filling and crust components separately up to 24 hours in advance. Assemble and bake when ready, or bake completely and store at room temperature for up to 2 days.

→ Why is my crust soggy?

Ensure your oven is fully preheated to 400°F. Cool for at least 30 minutes before slicing—this allows the cornstarch-thickened filling to set properly. Cutting too soon releases steam and creates sogginess.

→ Can I freeze this slab pie?

Bake and cool completely, then wrap tightly in plastic and foil. Freeze for up to 3 months. Thaw overnight at room temperature and reheat at 350°F for 15 minutes to restore crispness.