Pierogi dough is only flour, water, a little oil and salt, and it is still the part people struggle with most. It springs back when you roll it, it tears, or the finished pierogi come out chewy. Nearly all of it comes down to one thing in the flour, and once you know how that behaves, the dough gets easy.
I make the dough for my pierogi ruskie with hot water and oil and no egg, and every step of the method is there for a reason. Here is what each one is doing.
The short answer
Pierogi dough that shrinks back or fights you when you roll it has not rested long enough. Dough that comes out tough once cooked has usually been worked too much or made with too strong a flour. Dough that cracks and crumbles needs a little more water.
What is going on in the dough
When flour meets water, two of its proteins join up into a stretchy network called gluten. The long gluten molecules are coiled and kinked, a bit like a spring. Stretch the dough and you pull them straight. Let go and a lot of those coils pull back, so the dough shrinks towards the shape it had before.
That springiness is exactly what you want in bread, where the dough has to stretch round the gas the yeast is making. In pierogi you want the opposite: a dough that stays where you roll it and cooks up tender. So the whole method is about keeping the gluten calm.
Why it shrinks when you roll it
A freshly kneaded dough is full of tension. The gluten has just been lined up and is holding itself tightly in place, which is why a ball of it feels firm and bounces back. Leave it alone and that tension slowly breaks some of the weak bonds holding the gluten together, and the dough relaxes into something soft and easy to shape.
That is the whole reason for the rest. My recipe wraps the dough and leaves it for 30 minutes before rolling, and that half hour is what stops it shrinking back on the board. If it is still fighting you, cover it and give it another ten or fifteen minutes. Rolling harder only puts the tension back in.
The same goes for the offcuts. Pressing the trimmings back into a ball and rolling them straight away gives you the springiest dough of the whole batch, so leave them under a cloth for a few minutes first.
Why it comes out tough
A strong gluten network is what makes bread chewy, and it is what makes pastry and dumpling doughs tough. A few things push it one way or the other.
- The flour. High protein bread flour builds a strong gluten, which is the wrong direction for pierogi. Use plain flour. Mine is 500 g of it.
- Fat. Oil weakens the gluten network, and that is what keeps the dough tender. It is the job of the four tablespoons of oil in my dough.
- Salt. Salt tightens the gluten and makes the dough more elastic, so it goes in sparingly: half a teaspoon to 500 g of flour.
- Working it. Every minute of kneading builds more gluten. Knead until the dough is smooth, then stop.
Why it is dry, crumbly or cracks
With too little water the gluten never forms properly, so the dough stays crumbly and cracks at the edges when you roll it or fold it round the filling. Work in a little more hot water, a tablespoon at a time, until it comes together smooth.
Why it is sticky
Sticky dough usually has a touch too much water. A light dusting of flour on the board and the rolling pin is all it needs. Try not to knead in handfuls of extra flour, because that makes the finished pierogi drier and heavier.
Hot water, and no egg
My dough uses hot, just boiled water and no egg. That is how I make it, and it gives me a soft dough that rolls out thin without much of a fight. Plenty of Polish cooks put an egg in theirs, and that works too. If you are making the filling with homemade twaróg, it is worth doing the cheese yourself as well.
Before you cook them
Keep the rolled dough and the finished pierogi under a clean cloth while you work. The surface dries out fast, and dry dough cracks when you try to seal it. Then cook them at a gentle simmer rather than a rolling boil, which is kinder to the seams.
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