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["Combine flour and 1/4 teaspoon salt in food processor bowl fitted with metal blade.", "Add butter; pulse until mixture resembles coarse crumbs.", "Add 1 tablespoon water at a time, pulsing between each addition, just until dough forms.", "Shape dough into disk; flatten slightly.", "Wrap in plastic food wrap; refrigerate 1 hour or until firm.", "Heat oven to 375 degrees F. Line baking sheet with parchment paper; set aside.", "Place egg and 1 tablespoon water in bowl; beat with whisk.", "Set aside.", "Roll out dough on lightly floured surface to 1/8-inch thickness.", "Cut dough into circles, using 4 1/2-inch round biscuit or cookie cutter.", "Cut each circle in half; brush edges with egg wash. Place rounded teaspoon filling onto one side of dough.", "Place craft stick along edge of filled half.", "Fold remaining dough over filling; crimp edges using fork.", "Cut small ""x"" in top of dough to vent.", "Brush top with egg wash; sprinkle with sanding sugar.", "Place onto prepared baking sheets; bake 13-15 minutes or until edges are golden brown.", "Cool on baking sheet 10 minutes; transfer to cooling rack.", "Cool completely.", "*Substitute frozen rhubarb, thawed, well-drained.", "Variation:", "Blueberry or Strawberry Pie on a Stick: Use fresh blueberries or chopped strawberries for rhubarb in filling."]