Pierogi(Polish Dumplings) - cooking recipe

Ingredients

2 c. sour cream
4 1/2 c. all-purpose flour
2 Tbsp. melted butter
2 eggs plus 1 egg yolk
2 tsp. salt
2 Tbsp. vegetable oil

Preparation

In a large bowl, mix all the ingredients and knead into a soft, pliable dough.
Cut in half and let rest, covered, for 10 minutes.
Roll out each half thinly.
Using a drinking glass, cut the dough in round circles.
Place less than a tablespoon of filling in the center of each circle.
Rub the edges with a little bit of water and fold over.
Gently press out excess air and seal into a half moon.
(You may freeze pierogis at this point for future cooking.)
Cook in boiling water for 8 to 10 minutes.
This recipe makes 70 to 80 pierogis.