Black Walnut and Cherry Strudel
Ingredients:
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1 large egg, beaten
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1 tablespoon water
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1 (8 ounce) package cream cheese, softened
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½ cup white sugar
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1 tablespoon lemon juice
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2 sheets frozen puff pastry, thawed
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1 (12 ounce) bag frozen dark cherries
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8 ounces chopped black walnuts
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½ cup confectioners' sugar
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2 teaspoons milk, or more as needed
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1 teaspoon vanilla extract