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The Ultimate Easy, Old-Fashioned Apple Crisp with a Buttery Cinnamon Oat Topping

Close-up of a single serving of warm apple crisp recipe in a white ramekin on a wooden table.

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Make this foolproof apple crisp recipe for a classic American comfort dessert. It features tender, cinnamon-spiced apples beneath a perfectly crunchy, buttery oat topping. Serve warm with vanilla ice cream.

Ingredients

Scale
  • 6 medium apples (like Granny Smith or Honeycrisp), peeled, cored, and sliced 1/4-inch thick
  • 1/4 cup granulated sugar
  • 1 tablespoon all-purpose flour
  • 1 teaspoon ground cinnamon
  • 1 tablespoon lemon juice
  • 1/2 cup all-purpose flour (for topping)
  • 1/2 cup packed light brown sugar (for topping)
  • 1/2 cup old-fashioned rolled oats (not instant)
  • 1/4 teaspoon ground cinnamon (for topping)
  • 1/4 teaspoon salt
  • 1/2 cup (1 stick) cold unsalted butter, cut into small cubes

Instructions

  1. Preheat your oven to 375°F (190°C). Lightly grease an 8×8 inch baking dish or a 9-inch pie plate.
  2. In a large bowl, combine the sliced apples, 1/4 cup granulated sugar, 1 tablespoon flour, 1 teaspoon cinnamon, and lemon juice. Toss gently until the apples are evenly coated.
  3. Spread the apple mixture evenly into the prepared baking dish.
  4. In a separate medium bowl, prepare the topping. Whisk together the 1/2 cup flour, brown sugar, oats, 1/4 teaspoon cinnamon, and salt.
  5. Cut the cold butter cubes into the dry topping mixture using a pastry blender or your fingertips. Work quickly until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining. This creates the crunch.
  6. Sprinkle the topping evenly over the apples in the baking dish. Do not press down.
  7. Bake for 35 to 45 minutes, or until the topping is golden brown and the apple filling is bubbly and tender when pierced with a fork.
  8. Remove from the oven and let it cool for at least 15 minutes before serving.
  9. Serve warm with a scoop of vanilla ice cream.

Notes

  • For the best crunch, make sure your butter is very cold when mixing the topping.
  • Use a mix of tart and sweet apples for the best flavor balance.
  • If the topping browns too quickly before the apples are tender, loosely cover the dish with aluminum foil for the last 10 minutes of baking.

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