I grew up eating these potato knishes every holiday. My grandmother had to show up with at least four dozen because they were devoured within minutes! I haven't changed her recipe other than to use ready-made pie crusts. You can use cooked ground beef or lamb as well. —Ellie Brandon, Tucson, Arizona
Nana Reba's Potato Knishes Recipe photo by Taste of Home
Preheat oven to 350°. Prepare potatoes according to package directions. Meanwhile, in a small skillet, heat butter over medium heat. Add onion; cook and stir just until tender, 4-6 minutes. Remove from the heat. Stir in salt and pepper. Stir onion mixture into potatoes. Cool slightly.
Meanwhile, on a work surface, unroll crusts. Roll each to a 12x10-in. rectangle. Spread half the potato mixture evenly over 1 crust; top with another crust. Repeat with remaining crusts and potato mixture. Cut each rectangle lengthwise into 2-in. strips. Carefully transfer strips to parchment-lined baking sheets, separating slightly. Press opposite edges of strips with a fork to seal. Cut strips crosswise into 2-in. squares.
Bake until golden brown, 25-30 minutes. Serve warm with mustard.