Old Fashioned Potato Knishes

Old Fashioned Potato Knishes

Growing up in New York, there were certain foods that you associated with your city. Knishes were unquestionably one of them. My late father was a HUGE fan of kasha and potato knishes and my brother Avi to this day loves them. The big shocker is that when I made these (a bunch of times, natch) my mom (!) of all people, said, this should become a regular in your repertoire. Frankly, I’m still reeling from the shock. But it gives you an idea of how well these went over. Don’t worry, I sent some to Avi as well.

So I checked out many many recipes for knish dough and was disappointed time and again (cookbooks, online etc.) until lo and behold, I spotted a recipe recommended by Deb from Smitten Kitchen and decided to go to the original guy who crafted it. His name is Joe and his website is called Joe Pastry * and the guy is awesome. Not only do I love his website but he is personable and professional. He also wrote me back and is very encouraging. Way to go Joe! (sorry, I couldn’t help myself 🙂 ). And so, I finally have an awesome knish recipe.

This dough is actually ridiculously easy to make, no yeast, no worries, and all you need is the patience of letting it rest for an hour. Yes, yep, nothing to be done about that, ya gotta do it. If you don’t let it rest, the dough will just not be properly workable but if you do (you are relaxing the gluten in the dough), promise! it’s a pleasure. Adult playdough if you get me.

So you should start with the dough since you need that resting time. It’s done in a bowl, no mixer or processor needed.

Take your flour, baking powder and salt and whisk briefly in a medium bowl, preferably one with a lid.

whisking dry ingredients together
whisking dry ingredients together

Then make a well (sorta a little crater in the middle of the flour mixture) and put the egg, oil, water and vinegar in it, and mix it all up till incorporated.

mixing wet ingredients with dry
mixing wet ingredients with dry

Stir it up till it looks like so:

Knish dough
Knish dough

If there’s a bit of flour on the bottom of your bowl, no worries, since right in the bowl, using your hands, you should knead the dough about 6 times, (fold and press, 1/4 turn and again) and then take the lid and close it. Otherwise, take some plastic wrap and cover.

dough resting in  bowl with lid
dough resting in bowl with lid

Set aside (you might want to time it to be sure, 1 hour, no cheating). A note, it might “weep” a little oil. No worries, just stir back in.

Now if you’ve been doing the sauteeing of onions and storing the extras in your fridge or freezer as I recommend Basic Sauteed Onions, A Kitchen Staple, you’ve saved a step. Otherwise, you need to sautee an onion. No big, do so and on to your potato filling. Peel about 5 medium potatoes and chunk or cube them (the faster to cook them, m’dear) put in a pot with salt, cover with boiling water and cook on medium simmer till really truly soft. We are gonna mash ’em. Into a bowl and whip out your potato masher (or a fork if you ain’t got one). A note. Do not, no no no put potatoes into a food processor or blender. They get a gummy texture and are just gross. Mashing will go fast if they are really soft (check with a toothpick to be sure).

Mashing those suckers
Mashing those suckers

Next add your sauteed onions and salt and this may seem odd but is not, beat a large egg and put 1/2 (yes, half) the egg into the mixture. You are saving the other half to brush on top of the knish when ready. Mix it all about.

mixing the potato filling
mixing the potato filling

See the other half of the egg? Yup for real. Okay. Your filling is ready to roll, and yuk yuk, so is your dough so now preheat your oven to 350 F.

Now take the rested dough and divide into four pieces, covering the ones you aren’t working with, sprinkle some flour on parchment paper, take a rolling pin and roll into a rectangle. The dough is soft and will roll nice and thin.

roll dough into rectangle
roll dough into rectangle

Now scoop up a quarter of your potato filling and place in a line on the bottom of the dough nearest you. Leave a bit of a margin. Like so:

Place filling on dough
Place filling on dough

Brush the flour away and roll the first bit of dough over the filling and then, using the parchment paper, lift it up a bit and the dough should just roll over and over covering the filling a number of times. If it doesn’t work for you, just gently roll it up yourself with your hands. Your dough should look like this:

rolling the dough
rolling the dough

and then this:

dough log
dough log

Now take the dough and sort of pat the filling so it is even and with your fingers, pinch the dough evenly so it looks like this:

Pinching the dough
Pinching the dough

I didn’t want mammoth size knishes so this was perfect for me. As you wish. Next twist the end piece of dough/knish to sort of tie it off from its mates.

twisted dough
twisted dough

After twisting, cut with a sharp knife to separate. Then stand them up on their little bottoms and gently press down and push your index finger lightly into the middle. Presto, you’ve made a knish. With a little practice you will become an expert.

Do this with all the dough (you might have a little filling left over, serve beef or chicken on it, don’t let it go to waste!) and put on parchment lined rimmed baking sheet. Remember the 1/2 an egg? Now use it and brush the knishes to glaze them. This makes them brown nicely in the oven.

Bake in the hot oven 30-40 minutes or till golden brown. Serve with brown mustard and astound your family!

Old Fashioned Potato Knishes

Dough:

2 cups (312 grams) all-purpose flour
1 tsp baking powder
1 tsp salt
1 large egg
1/2 cup canola oil
1/2 cup lukewarm water
1 tsp vinegar
Filling:

5 medium potatoes, peeled and cut into chunks
boiling water to cover
pinch of salt
one medium onion, peeled and chopped
2 tablespoons oil
1 large egg
1 teaspoon salt

extra flour to sprinkle on parchment paper or silpat


Directions:

In a medium bowl (best if it has its own cover, otherwise you will need plastic wrap), whisk together your dry ingredients, make a well in the center of the flour mixture and add the egg, oil, vinegar and water. Stir together till all the ingredients are incorporated and then right in the bowl, knead the dough about six times, just pressing and turning to make sure all the ingredients have been properly mixed. Cover the bowl with the lid or plastic wrap and let the dough sit for an hour at room temperature. Set aside.

Prepare the filling by boiling the potatoes with the pinch of salt till very soft. Put potatoes in a bowl to cool. Sautee the onions in the oil till medium brown and add to the potatoes and mash together and add a teaspoon of salt. Stir well. When filling is cool, beat the egg and pour HALF the egg into the potato mixture saving the other half to brush on the finished knishes.

Divide the rested dough into 4 parts. Roll out the dough on a floured piece of parchment paper into a rectangle and along the bottom of the dough (short side) leaving a bit of a margin, place a layer of potato filling. Encase the filling with one turn of dough and then using the parchment paper, lift up the edge and gently roll and the dough should fold over itself like a jelly roll. Pinch the dough at intervals (I did 4-5 knishes from a rectangle of dough) and twist. Cut at the twist, pinch the ends shut and sit on their bottoms, gently poking the top to help seal and make a small indentation. Place on parchment paper on rimmed baking sheet, brush with the remaining egg mixture, and do this with the rest of dough and filling. If you have filling left over, serve as a side dish. Bake the knishes 30-40 minutes or till golden brown. Serve with mustard, of course 🙂 . A note, these reheat beautifully and will keep (ha! try it and see how long they last) at least 5 days in the fridge.

https://joepastry.com/2009/the_tradish_knish/

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12 replies
  1. Orit S
    Orit S says:

    Hi! This was such a great recipe and easy..no patchka type:)! Came out really yummy! Only thing is the dough wasnt that thin and came out more bready type/ taste rather than that thinner type. I rolled it out as much as i could.

    Reply
    • admin
      admin says:

      So glad it came out well for you! It’s possible if you let it rest long enough that you used a little too much flour. I weigh my flour because if you scoop up a packed cup it adds a lot more flour and can make the dough heavier. A trick to avoid this without weighing, is to put flour in a container and lighten it with your hands (fluff it) then scoop and sweep off the excess. Enjoy!

      Reply
  2. Fayge Borvick
    Fayge Borvick says:

    Hi. These look yummy. Can they be frozen? If yes, would you recommend freezing them before or after you bake them? thx

    Reply
    • admin
      admin says:

      Hi Fayge,

      You can freeze these, I’d bake them first, let cool and then wrap well. To serve, let defrost and heat briefly in oven to refresh.

      Reply
  3. Moira
    Moira says:

    Thank you for this nice recipe. I’m a former NY’er living in Mexico. I make these each year for my Mexican neighbour who visited anYC once and that was the only food he remembered that tasted good. My question now, since I’m making them for myself, neighbours and friends:

    How many will this make and is doubling the recipe ok to do, thank you,

    Reply
    • Debbie
      Debbie says:

      Hi Moira, yes you can definitely double the recipe, this makes about 8 medium or 12 smallish knishes. I usually serve them as a side dish so I go with the smaller size.

      Reply
  4. Charles Putzer
    Charles Putzer says:

    Was wondering if you tried Shmaltz in knish recipe. I’m use to eating Gabelas knish’s in new York. I no longer live there I’m in Oklahoma. They do not sell knish. So going to make em. I want more then 5 can freeze some .Do I double your recipe? I’ve also seen recipe with turmeric spice in dough gives em a darker color dough. Thank you

    Reply
    • Debbie
      Debbie says:

      Hi Charles, nope never tried shmaltz in this but I imagine it would be ridiculously delish. I prefer to keep my knishes pareve which means neither meat nor dairy so it can be eaten at any meal but if you wish go for it! These freeze very well and yep, you can double the recipe. Just bake them, cool, wrap well and freeze. When defrosting just warm in an oven (or even a microwave) but if you want the touch of crispiness the oven is the way to go once defrosted. (or a toaster oven)

      Reply

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