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Apple slab pie on a lined baking sheet.
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Flaky Apple Pie Recipe With Puff Pastry

This simplified apple pie recipe made with puff pastry will quickly become a favorite. It is so easy to make and perfectly flaky!
Prep Time20 minutes
Cook Time18 minutes
Total Time38 minutes
Course: Dessert
Cuisine: American
Diet: Vegetarian
Keyword: apple pie, puff pastry
Servings: 12
Author: Amy Sandidge
Cost: $7

Ingredients

  • 1 sheet puff pastry
  • 6 cups apples- peeled, cored, and sliced in ¼-inch pieces
  • 2 tablespoons fresh lemon juice
  • ½ cup granulated sugar
  • 3 tablespoons cornstarch
  • dash salt
  • 1 teaspoon cinnamon
  • 1 egg for egg wash

Crumble topping

  • ¼ cup all-purpose flou
  • ¼ cup whole wheat flour If you prefer, you can use all-purpose here as well.
  • ½ cup oats
  • 4 tablespoons brown sugar
  • ½ teaspoon cinnamon
  • dash salt
  • 5 tablespoons melted butter

Instructions

  • Pour the lemon juice over the lemons in a medium-sized pan. Sprinkle over the sugar, cornstarch, cinnamon, and salt.
  • Turn heat to medium and cook, stirring occasionally and gently with a rubber spatula until the apples are JUST BARELY softened.
  • Set them aside and let them cool slightly.
  • Preheat the oven to 400 degrees. Line a baking sheet with parchment paper.
  • Mix all ingredients for the crumble topping and set it aside.
  • On a lightly floured surface, roll out the puff pastry sheet to a 14x20-inch rectangle. Place it on the lined baking sheet.
  • Pour the apples into the center of the puff pastry sheet. Spread them out, leaving about 1-inch all the way around.
  • Sprinkle the crumble topping over the apples. Mix the egg and brush it over the edges of the puff pastry.
  • Transfer it to the oven and bake until the edges are deep golden brown. Mine took about 20 minutes.
  • Remove and serve!

Video

Notes

  • It is important the puff pastry stays chilled until it is baking time. You will get the best results if it doesn't get too warm before baking. So, after it is rolled out, make sure and move it to the fridge. 
  • The types of apples you use matter. Read in the section below for ideas on which are best. 
  • If you don't want to use the crumble topping,  you can also cover the top with the other sheet of puff pastry. Brush egg wash on the bottom edges, sealing the 2 layers together. Press the edges onto each other and crimp with a fork. Cut slits in the top to vent the pie. Then brush the top of the pie with egg wash as well. If you want, you can also sprinkle with raw sugar (demerara sugar) before baking. Bake until it is golden brown.