1egg yolkmixed with 1 teaspoon of water, for glazing
Instructions
Beat the eggs with the salt, baking powder, and oil. Gradually add the flour–just enough to make a soft dough that is no longer sticky–mixing it in with a fork to begin with, then working it in with your hand.
Knead for about 10 minutes, until very smooth and elastic, sprinkling in a little flour if necessary. Coat with oil, by pouring a little into the bowl, and turning the dough around in it Cover the bowl with plastic wrap and leave for an hour
To make the potato filling
Fry the onions in the fat or oil until soft and golden. Boil the potatoes in their jackets, then peel and mash them. Season, with plenty of salt and pepper and mix in the onions
To make the cream cheese filling:
Mix all the ingredients together.
To make the meat filling:
Fry the onion in the oil until golden. Add the meat and cook, stirring and crushing it with a fork, for about 8 minutes, until it changes color. Season with salt and pepper and stir in parsley Let it cool before using.
Knead the dough again for a moment and roll out as thin as you can. Cut into rounds 3 inches (7 1/2 cm) in diameter. Because the dough is elastic and springs back, pull it a little to stretch it again. Place 1 Tablespoon of filling in the center of each round, then fold over and pinch the edges together firmly to seal them.
Place on greased baking sheets, brush with the egg yolk, and bake in a preheated 350F (180C) oven for 20 25 minutes, or until golden. Serve hot.
Notes
Make your own knishes and choose from two different fillings. This is the classic New York pastry, which bakes into a thin crisp crust. We offer two filling recipes, a meat version and a dairy version.