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This apple slab pie is loaded with caramelized apples and wrapped in a flaky puff pastry crust. The filling tastes like an apple pie but it’s even easier. It’s so easy and quick to whip up and you don’t even have to struggle with making your own dough; a store-bought puff pastry will work just fine. You can use your favorite apples for this but there’s nothing quite like a caramelized, slightly tart granny smith.
I should say this though; if you’re serving more than 4 people, you ought to double the recipe and make 2. That’s easy since a package of puff pastry comes with two sheets! It will be devoured quickly.
I’m wishing there were leftovers, but there never are with this one!

Ingredients for Apple Slab Pie:
1 lb (2 large) granny smith apples, peeled, cored and cut into 1/3″ slices
4 Tbsp unsalted butter
1/4 cup brown sugar, lightly packed
1 tsp ground cinnamon
1 sheet (8 or 9 oz) frozen puff pastry, thawed (I used Pepperidge Farms)
All purpose flour for dusting
1 egg, lightly beaten for egg wash
Coarse sugar for sprinkling (I used raw sugar)

How to Make an Easy Apple slab pie:
Preheat Oven to 400˚F.
1. In a large skillet or a dutch oven, melt 4 Tbsp butter over medium heat. Add sliced apples and cook, stirring occasionally until lightly browned (6-8 min). Reduce heat to low and stir in 1/4 cup brown sugar and 1 tsp cinnamon. Continue to simmer, stirring occasionally until apples are soft and caramelized (5 min).


You’ll be really tempted to eat your filling at this point. Go on and at least have a taste!

2. Lightly dust a sheet of parchment paper with flour. Place your thawed puff pastry dough over it and roll it out slightly to flatten the top (9 1/2 x 10 1/2 inches). Cut puff pastry dough in half down the center to make two pieces (each 4 3/4 x 10 1/2 inches.


3. Arrange apples in a tight row lengthwise down the middle of one puff pastry sheet leaving a one inch border on all sides. Pour remaining syrup from the apples over the top of the apples. Brush your beaten egg around the edges of your pastry. Top with the second pastry sheet and press down on the edges to seal.

4. Cut 6 (1-inch wide) slits down the center of your pastry to create vents.

5. Brush the pastry with egg wash and sprinkle the top generously with coarse sugar. Bake at 400˚F for 15-17 min or until top is golden brown.



Apple Cinnamon Slab Pie

Ingredients
- 1 lb 2 large apples (I used granny smith apples), peeled, cored and cut into 1/3" slices
- 4 Tbsp unsalted butter
- 1/4 cup brown sugar, lightly packed
- 1 tsp ground cinnamon
- 1 sheet, 8 or 9 oz frozen puff pastry, thawed (I used Pepperridge Farms)
- All purpose flour for dusting
- 1 egg, lightly beaten for egg wash
- Coarse sugar for sprinkling, I used raw sugar
Instructions
How to Make an Easy Apple slab pie: Preheat Oven to 400˚F.
- In a large skillet, melt 4 Tbsp butter over medium heat. Add sliced apples and cook, stirring occasionally until lightly browned (6-8 min). Reduce heat to low and stir in 1/4 cup brown sugar and 1 tsp cinnamon. Continue to simmer, stirring occassionally until apples are soft and caramelized (5 min).
- Lightly dust a sheet of parchment paper with flour. Place your thawed puff pastry dough over it and roll it out slightly to flatten the top (9 1/2 x 10 1/2 inches). Cut puff pastry dough in half down the center to make two pieces (each 4 3/4 x 10 1/2 inches)
- Arrange apples in a tight row lengthwise down the middle of one puff pastry sheet leaving a one inch border on all sides. Pour remaining syrup from the apples over the top of the apples. Brush your beaten egg around the edges of your pastry. Top with the second pastry sheet and press down on the edges to seal.
- Cut 6 (1-inch wide) slits down the center of your pastry to create vents.
- Brush the pastry with egg wash and sprinkle the top generously with coarse sugar. Bake at 400˚F for 15-17 min or until top is golden brown.





My husband has become the apple thing, which he calls it, whisperer. He does this to make a subliminal suggestion that it is time for me to make again. Wonderful recipe!
Awww that’s the best! Thank you so much for sharing that with me :).
Delicious!!I couldn’t bring myself to put 4 Tbsp butter in such a small area so used 3 and it was excellent! I might even try 2 next time. Thanks for the recipe!
Thank you for sharing your wonderful review 🙂
You left out of your instructions that it is absolutely ESSENTIAL to have the pastry chilled or you will never be able to transfer to a baking pan. While the recipe is good, you’re guaranteed to destroy the formed pastry unless it’s well chilled.
Hi Petros, that is a great point which is why we bake it on the parchment paper that it is prepared on, otherwise it would be more difficult to move. Thank you for sharing your tip!
Added cardamom powder to the filling and sugar topping. Can’t wait to try it tomorrow!
I look forward to your feedback! Happy Thanksgiving!
I am planning to make this for my family’s Christmas dinner in a few weeks. I wonder if I could make one with apples and one with peaches. Would I need to adjust any of the ingredients or cooking mechanisms for peaches? Thanks.
I think you may I haven’t tried that but I would love to know how you like it!!
I tried it with frozen cut peaches last weekend. I didnt change anything else about the recipe; same quantity on the other ingredients, same cook time, and temperature. It turned out really well! My husband liked the peach better than the apple, and a few visitors that we had liked it better too. The peach was a real hit!
Thank you so much for sharing that with us, Jami!
What a wonderful easy dessert! My apples were a bit un-fresh, so they didn’t slice up neatly. The recipe works just fine if you pile the apples on willy nilly. I love that the coarse sugar topping makes it look super indulgent but the actual amount of sugar is low. Not too sweet.
Thank you so much for sharing this feedback with us!! I’m happy you enjoyed that!
I made this tonight and it was delicious and so easy! I don’t know how I will stop myself from eating the whole thing tonight. Great recipe for this time of year.
It’s so perfect for this time of year!! Thank you for sharing your wonderful review 🙂
This pie is a bomb. My kids loved it. Thanks for the great recipe.
That is the best when kids love what we moms make. That’s so great!
What do you bake this on?
Parchment paper and a sheet pan, Lucy 🙂
Delicious, I will use this receipe in future. Thank you from Helen White Australia.
You’re welcome Helen! I’m glad you enjoy the recipe, thanks for sharing!
Made this tonight…wonderful flavors on a cold night. Easy to follow recipe directions. Another keeper from Natasha 😏
Thanks for sharing Carol! I’m glad you enjoy the recipe!
Hi Natasha,
I made this tonight… and my bottom seems more doughy then it should be. Do you know why this would be? Could it be that my slab didn’t have enough air for venting? I baked at 400 for 20 mins.
Thanks!
Hi Cornelia, I am always happy the help troubleshoot. Did you use the same type of pastry? Also, overloading with apples can cause the base to be more moist with additional moisture from the apples. I hope that helps!
If I substitute Pie crust for pastry crust doineed to adjust the cooking times?
Hi Debbie, I haven’t tested it that way so it is difficult to guess. Puff pastry bakes much faster and with pie crust, you don’t really need to pre-cook the filling since it will be baking longer. I would probably reduce the temperature a little – maybe start with a rough estimate of 375˚F for 45 minutes or so? Let me know if you experiment! 🙂
I made this pie for this Thanksgiving. Everybody loved it!!!! I made two right away and two the next day! Very easy. It’s very easy to caramelize apples. I wish I could post a picture of it – it looks so good!
I’m glad to hear how much you enjoy the recipe! Please feel free to share your recipe photos on Facebook, I love seeing them. Thanks for sharing your fantastic review with other readers Anya!
Love this recipe, I am serving it tomorrow of Thanksgiving dessert along with a pumpkin pie. I it quick to make and so delicious!
I’m happy to hear that Linda! Thanks for sharing your great review! Happy Thanksgiving 😃
HI
Just made this today.not sure how to store in refrigator to keep it from getting soggy.for a day or so in refrigator.
Joyce
Hi Joyce, I would recommend letting this stay at room temperature overnight. If it is just overnight, it will keep well at room temperature. You can cover and refrigerate if you prefer and then place in the oven to re-toast just until heated through and it should still be great without turning soggy.
I love this recipe because it’s so simple yet impressive! I thought it was gone from the site because it was hiding under pies and I looked for it under pastries 🙂 I’ve made this more than once and it’s always eaten right away! I love your site and recipes…thanks for sharing
You’re welcome Cheryl! I’m glad to hear how much you enjoy the recipe! Thanks for sharing your great review!
Can there be frozen and for how long?
Hi Kathleen, to be honest, I haven’t tried freezing the whole pie so I can’t really say for sure. It’s a good idea and if you try it, let me know how it works out
Could I use apple pie filling with this?
Hi Angela, I haven’t tried that but I don’t see why not 🙂
I made this last Oct/Nov for Halloween and Thanksgiving and it was an instant hit. I made two because one didn’t make it out alive. It was that good. Making another one today. Did I mention it was super easy?
Awesome, I’m so glad to hear that! Thanks for sharing your wonderful review Vanessa!