Ingredients (Serves 12–16)
For the Crust:
All-purpose flour
3 cups
Salt
1 tsp
Cold unsalted butter (cut into cubes)
1 cup
Ice water
6–8 tbsp
For the Apple Filling:
Apples (peeled, cored, and sliced thin)
6–7 cups
Sugar
¾ cup
Brown sugar
¼ cup
Cornstarch
2 tbsp (to thicken the juices)
Cinnamon
1 tsp
Nutmeg
¼ tsp
Lemon juice
1 tbsp
Salt
A pinch
For the Topping:
Oats
½ cup
Flour
¼ cup
Sugar
¼ cup
Cold butter (cut into cubes)
¼ cup
Pinch of salt
A few pinches
🍰 Step-by-Step: How to Make Apple Slab Pie Like a Pro
Step 1: Make the Crust
In a bowl, mix flour, salt, and cold butter until the mixture looks like coarse crumbs.
Add ice water a tablespoon at a time — just until the dough comes together.
Press half of the dough into a 13x18-inch baking sheet lined with parchment paper.
Leave the rest of the crust crumble for the topping.
Step 2: Toss the Apples
In a large bowl:
Toss apple slices with sugar, brown sugar, cornstarch, cinnamon, nutmeg, lemon juice, and a pinch of salt
Mix well — and spread evenly over the crust.
Step 3: Sprinkle the Topping
In a new bowl:
Combine flour, oats, sugar, salt, and cold butter
Cut in the butter with a pastry cutter or fork until crumbly
Sprinkle the topping evenly over the apples.
Step 4: Bake Until Golden
Bake at 375°F (190°C) for 40–45 minutes , or until the apples are tender and the topping is golden and crisp.
Let cool completely before slicing into bars.
Serve warm or at room temperature — and watch it disappear.
🧑🍳 Tips for Perfect Results Every Time
Use a mix of apples
Tart Granny Smith + sweet Honeycrisps = dreamy
Don’t skip the cornstarch
Prevents a soggy bottom
Press the crust firmly into the pan
Ensures it holds together
Let it cool before slicing
Helps the filling set
Store in an airtight container
Keeps for up to 3 days
Also, you can freeze the unbaked pie — just wrap it up and bake from frozen with a few extra minutes.
🧁 Creative Ways to Upgrade Your Slab Pie
Want to make it even more special?
Try these ideas:
Drizzle with caramel
Adds sweetness and shine
Sprinkle with sliced almonds
For nutty, crunchy contrast
Add a splash of bourbon to the filling
For adult-only flavor
Swap the topping for streusel or crumble
For extra texture
Add raisins or dried cranberries
For a surprise chew
Even better — serve with a scoop of vanilla ice cream or a slice of sharp cheddar cheese.
🍽️ Final Thoughts: Sometimes the Best Pie Isn’t Round — It’s Square and Serves the Whole Room
Apple pie will always be a classic.
But sometimes, you need a pie that’s more than just a dessert — it’s a statement .
Apple Slab Pie is that kind of dessert.
It’s:
Rustic
Generous
Deeply comforting
And once you try it?
You’ll wonder why you ever rolled dough again.
So next time you're feeding a crowd, baking for a potluck, or just craving a big pan of cinnamon-scented joy…
Make this.
Because sometimes, the best way to enjoy apple pie isn’t with a fork.
It’s with a friend.
A napkin.
And a big pan of buttery, baked-to-perfection goodness.
And once you take that first bite?
Warm.
Golden.
Crispy on top.
Soft and spiced underneath.
You’ll realize this isn’t just pie.
It’s apple magic in a pan .