Ingredients
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1 sheet frozen puff pastry, thawed
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3 medium apples, peeled if desired and sliced (about 3 cups)
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1 tablespoon all-purpose flour plus ¼ cup, divided
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3 tablespoons granulated sugar
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¾ teaspoon ground cinnamon, divided
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½ cup rolled oats
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¼ cup nuts, such as sliced almonds or chopped pecans
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½ cup light brown sugar
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¼ cup cold unsalted butter, cut into small pieces
Directions
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Preheat oven to 400°F.
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Unfold 1 sheet puff pastry and place on a large rimmed baking sheet. With a sharp knife, gently score the pastry about ¼ inch from the edge to create a border.
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Combine apples, 1 tablespoon flour, 3 tablespoons granulated sugar and ½ teaspoon cinnamon in a medium bowl; stir well to coat the apples. Spread the apples evenly over the pastry inside the border.
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Combine ½ cup each oats and brown sugar, ¼ cup nuts and the remaining ¼ cup flour and ¼ teaspoon cinnamon in the medium bowl. Cut in ¼ cup butter until the mixture resembles coarse crumbs. Sprinkle the topping evenly over the apples. Bake until the pastry is browned and the apples are soft, 25 to 30 minutes.
