Fold each corner of the puff pastry square up until they touch. Lightly brush egg wash around edges. Giant Spinach Knishes - Edible Woman Recipe Food Cooking Recipes Gather up and overlap the sides, firmly pressing them together to seal the pastry. Potato knish recipe with puff pastry . Add onions to mashed potatoes. Drain excess oil and liquid from meat. Lightly dust workspace with flour. Turn the oven on 425 degrees and line a baking sheet with parchment paper. Place potatoes in a large saucepan; Combine the potatoes and scallions; Meanwhile, in a large skillet, melt butter over medium. My kids love them and i would love to have them on hand in the freezer for unexpected company. A classic potato knish recipe. I make mini to small size potato knishes. Lightly roll out puff pastry with rolling pin. They're easy to make and can be had as a light meal, snack or sided with soup. These are baked knishes but they can be. Prick with a floured fork...