Nothing beats a classic potato knish.

Make your own at home with this recipe, complete with jammy onions and flaky crust.

Serve as a side dish, appetizer, or snack with deli mustard.

Potato Knishes on a Plate with a Bowl of Mustard

Simply Recipes / Micah Siva

My favorite kind is a potato and onion knish with a heavy seasoning of black pepper.

No matter the filling, knishes taste like comfort and remind me of sharing a meal with my grandparents.

These knish shops helped the Jewish population launch into society and make a better life for themselves.

Potato Knishes on a Plate with a Bowl of Mustard

Simply Recipes / Micah Siva

Add the water, oil, egg, and vinegar and pulse until just combined.

It will resemble a shaggy dough that no longer sticks to the side of the bowl.

Tip

you could also make the dough by hand.

Potato Knishes on a Tray with One on a Small Plate

Simply Recipes / Micah Siva

Transfer the dough to a large bowl and cover with a kitchen towel.

Let rest for 1 hour at room temperature, or overnight in the refrigerator.

While the dough is resting, make the filling.

Flour, Eggs, and Oil in Food Processor for Potato Knish Recipe

Simply Recipes / Micah Siva

Heat the olive oil in a medium skillet over medium heat.

Remove from the heat and season with salt and pepper.

Line a large baking sheet with parchment paper.

Potato Knish Dough in Food Processor

Simply Recipes / Micah Siva

Drain and transfer to a medium bowl.

Add the cooked onions to the potatoes along with the butter.

Mash with a potato masher or fork until smooth.

Potato Knishes Dough Resting in a Bowl

Simply Recipes / Micah Siva

Place a 2-inch wide log of the potato mixture running about an inch from the bottom of the dough.

Roll the dough around the filling and into a log.

Not too tightit should roll around the filling 3 to 5 times.

Onions in Skillet for Potato Knishes Recipe

Simply Recipes / Micah Siva

Use your finger to make 11 indents equally spaced down the log approximately 2 inches apart.

Use a small knife to cut the log at these points, making 12 knishes.

Pinch at one end to seal; this will be the bottom of the knish.

Mashed Potatoes in a Bowl for Knish Recipe

Simply Recipes / Micah Siva

Pinch and twist at the other end or leave open.

Combine the whisked egg and water in a small bowl.

Place the knishes on the prepared baking sheet evenly spaced apart, pinched-side down.

Potato Mixture with Knish Dough Folded Over It

Simply Recipes / Micah Siva

Serve with deli-style mustard.

Reheat refrigerated knishes on a baking tray at 350F for 10 to 15 minutes until warm.

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Potato Knishes Log Cut into Knish Pieces

Simply Recipes / Micah Siva

Bottoms of Potato Knishes Folded

Simply Recipes / Micah Siva

Different Types of Folds for Potato Knishes

Simply Recipes / Micah Siva

Potato Knishes on a Tray with a Bowl of Egg Wash

Simply Recipes / Micah Siva

Potato Knishes on Tray with One Cut

Simply Recipes / Micah Siva