The photograph suggested that the pierogis would be flaky, but instead they were a bit chewy. I suppose the pastry would have been flaky had butter been used in the dough. I served these with borscht and my guests enjoyed them but I'm not sure I'd make them again.
Potato-Cheese Pierogi with Sauerkraut
From EatingWell: November/December 2011
Potatoes mashed with sautéed onions and sauerkraut makes a flavorful filling in these yummy pierogi. We used whole-wheat pastry flour for added fiber and substituted extra-virgin olive oil for margarine or butter. Pierogi freeze beautifully, so make a large batch if you like.