INGREDIENTS
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2 1/2 cups all-purpose flour
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1/4 cup granulated sugar
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1/4 teaspoon table salt
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1/4 teaspoon baking powder
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1 cup cold butter, cut into small pieces
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2 large egg yolks
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1/2 cup ice-cold water
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3 tablespoons butter
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1/2 cup sliced fresh or frozen rhubarb
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1 cup sliced fresh strawberries
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2/3 cup granulated sugar
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1 tablespoon all-purpose flour
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3 tablespoons fresh lemon juice, divided
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Parchment paper
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1 large egg
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2 1/2 tablespoons milk, divided
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1 1/2 cups powdered sugar