Squeeze out excess moisture from sauerkraut. Add 1/4 cup sauerkraut to each strip of pastry, spreading evenly to the center. Top with kielbasa. Tightly roll crimping the seam and tucking in the ends. Place pastry seam-side down on prepared sheet tray. Brush with egg wash and sprinkle with caraway seeds. Bake uncovered for about 35 minutes.
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