Potato Knishes Recipe

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Potato Knishes are sure to please the whole family.
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6-8 servings SERVINGS


  • 1-1/2 pounds russet potatoes, peeled and cut into chunks
  • 4 tablespoons butter
  • 1/4 cup chicken fat or vegetable oil
  • 1 large onion, diced
  • Salt and pepper, to taste
  • 1-1/2 packages (17 ounces each) puff pastry, thawed
  • Spicy mustard, for serving


  • Lightly oil a half sheet pan.
  • Cover potatoes with cold, salted water in a saucepan. Bring to a boil, and boil until fork-tender, about 15 minutes. Drain well, and return to the saucepan. Add butter.
  • Melt the chicken fat in a skillet over medium heat. Add onion, and saute until golden and soft, about 10 minutes. Add to potatoes, and mash well. Season with salt and pepper.
  • Remove pastry sheets from refrigerator 1 at a time (chilled pastry is easier to work with). Cut each sheet into 9 equal squares. Stretch each square to form a much larger square, about 1/16-inch thick.
  • Drop a rounded tablespoon of potato filling in the center of each square. Fold over 2 opposite sides of the dough, then fold over the 2 ends to form a neat parcel. Place seam-side down on prepared pan. Repeat with remaining pastry squares and filling.
  • Place pan in the freezer while you preheat the oven to 400 degrees Fahrenheit.
  • Bake knishes for about 20 minutes (30 minutes if completely frozen), or until golden brown.
  • Serve warm with spicy mustard.Note: Chicken fat is the preferred medium for sauteing the onions, as it thoroughly flavors the filling, but any cooking oil will work fine.
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