There’s something special about the smell of apples and butter filling the kitchen on a crisp fall day. This Apple Slab Pie is the definition of cozy comfort — the kind of dessert that gathers everyone around the table before it even leaves the oven. With a flaky all-butter crust and tender cinnamon-spiced apples baked in a sheet pan, it’s as nostalgic as it is delicious.

When I bake this pie, it feels like a love letter to autumn — golden crust, sweet baked apples, and that irresistible scent that makes the whole house feel warm. It’s big enough for sharing and easy enough for weeknight baking. Serve it with a scoop of vanilla ice cream, and suddenly, the day just feels softer.

Table of Contents

Why You’ll Love It

Big-batch comfort: This slab pie easily serves 12–18 — perfect for potlucks, holidays, or Sunday dinner.
Unbelievably flaky crust: All butter, no shortcuts — just golden perfection.
Cozy fall flavor: Apple, cinnamon, nutmeg, and a touch of allspice for the ultimate seasonal taste.
Feeds the soul (and the family): Comfort food at its best — easy, nostalgic, and crowd-pleasing.
Make-ahead friendly: Bake it a day in advance, reheat, and enjoy.

Time Needed

Prep Time: 45 minutes
Cook Time: 45 minutes
Cooling Time: 2 hours 45 minutes
Total Time: 4 hours 15 minutes
Servings: 12–18 squares

Ingredients

3 ¾ cups all-purpose flour
1 ½ tbsp sugar
1 ½ tsp salt
3 sticks (12 oz) cold unsalted butter, cubed
¾ cup ice-cold water
3 ½–4 lbs apples (about 10 cups), peeled and chopped
Squeeze of lemon juice
⅔–¾ cup sugar
3 tbsp cornstarch
1 tsp ground cinnamon
¼ tsp nutmeg
¼ tsp allspice
⅛ tsp salt
2 tbsp heavy cream or 1 egg beaten with 1 tbsp water (for brushing)

Step-by-Step Instructions

Make the crust Whisk flour, sugar, and salt in a bowl. Add cold butter and press it between your fingers until pea-sized bits form. Add cold water gradually until the dough just comes together. Divide in half, shape into rectangles, wrap, and chill for at least 2 hours.
Prepare the filling Toss chopped apples with lemon juice. Combine sugar, cornstarch, and spices, then mix into the apples until every piece is coated in cozy fall flavor.
Assemble the pie Preheat the oven to 375°F. Roll one dough piece into an 18×13-inch rectangle and line a 10×15-inch sheet pan with it. Chill while rolling out the second crust to 16×11 inches.
Fill and top Spoon the apple mixture evenly into the crust. Place the top crust over the filling, trim edges, and crimp to seal. Brush with cream or egg wash and cut vents for steam.
Bake and serve Bake for 40–45 minutes until golden brown and bubbling. Cool for at least 45 minutes before slicing into squares. Serve warm with ice cream or caramel drizzle for extra indulgence.

Variations to Try

Caramel Apple Pie: Add a drizzle of caramel before sealing the crust.
Apple-Pear Slab Pie: Combine apples and pears for a twist on tradition.
Maple Glaze: Drizzle warm maple icing over the cooled pie.
Mini Slab Pies: Cut into bite-sized bars for snacking or gifting.

Tips from Chef Emma

Use a mix of Honeycrisp and Granny Smith apples for balance and texture.
Keep the butter cold and handle the dough gently — that’s the key to flakiness.
Don’t rush cooling; it helps the filling set beautifully.
For extra shine, brush the top crust with cream and sprinkle a little sugar before baking.

Nutrition Info per Serving

Serving Size: 1 square
Calories: 385
Carbohydrates: 54g
Sugars: 28g
Fat: 17g
Protein: 4g
Sodium: 210mg

Frequently Asked Questions

Q: Can I make this ahead of time?
A: Yes! Bake it the day before and warm it at 300°F for 20 minutes before serving.
Q: Can I use pre-made crust?
A: You can, but homemade gives the best buttery, flaky texture.
Q: What’s the best apple combination?
A: Honeycrisp + Granny Smith for the perfect sweet-tart balance.
Q: Can I freeze it?
A: Absolutely — cool completely, wrap tightly, and freeze for up to 2 months.

Final Thoughts

There’s comfort in the familiar, and this Apple Slab Pie captures it perfectly — the warmth of baked apples, the buttery layers of crust, and the joy of sharing something homemade. Whether it’s a Sunday bake or your Thanksgiving showstopper, this pie brings people together. Save this recipe to your Comfort Food board — you’ll want it on repeat all fall long!