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The Ultimate Foolproof Apple Crisp with Brown Butter Oat Topping

A spoonful of warm apple crisp, showing soft baked apples and crunchy oat topping, lifted from a glass baking dish.

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Make this easy apple crisp for a comforting dessert. It features tender, spiced apples beneath a crunchy, buttery brown butter oat topping. This recipe is simple to prepare and perfect for fall gatherings or serving warm with vanilla ice cream.

Ingredients

Scale
  • 6 large baking apples (like Granny Smith or Honeycrisp), peeled, cored, and sliced
  • 1/4 cup granulated sugar
  • 1 tablespoon all-purpose flour
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1 tablespoon lemon juice
  • 1/2 cup (1 stick) unsalted butter, browned
  • 1 cup old-fashioned rolled oats
  • 1/2 cup all-purpose flour
  • 1/2 cup packed light brown sugar
  • 1/4 teaspoon salt

Instructions

  1. Preheat your oven to 375 degrees Fahrenheit. Lightly grease an 8×8 inch baking dish.
  2. In a large bowl, combine the sliced apples, granulated sugar, 1 tablespoon flour, cinnamon, nutmeg, and lemon juice. Toss gently until the apples are evenly coated.
  3. Spread the spiced apple mixture into the prepared baking dish.
  4. To make the brown butter oat topping, melt the butter in a small saucepan over medium heat. Continue cooking, stirring often, until the butter foams and brown bits form at the bottom, giving off a nutty aroma. Remove from heat immediately.
  5. In a separate medium bowl, combine the rolled oats, 1/2 cup flour, brown sugar, and salt. Pour the warm brown butter over the dry ingredients. Mix with a fork until the mixture is crumbly and well combined.
  6. Sprinkle the oat topping evenly over the apple layer in the baking dish.
  7. Bake for 40 to 45 minutes, or until the topping is golden brown and the apple filling is bubbly and tender when pierced with a fork.
  8. Let the apple crisp cool for at least 15 minutes before serving. Serve warm with a scoop of vanilla ice cream or a drizzle of caramel sauce.

Notes

  • For the best texture, use a mix of tart and sweet apples.
  • If you do not want to brown the butter, you can use melted unsalted butter for a classic topping flavor.
  • This dessert is excellent made ahead; cover and refrigerate after baking, then reheat before serving.

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