Here are some pictures
3 cups of flower
1/4 tsp of salt
4 egg yolks
3/4 pt of sour cream or 1 1/2 cup
Sift flour into a mound on pastry board. Add salt, egg yolks and cream. Knead until all flour is taken up. Flour the board well and take about 1/3 of the dough mixture and roll out to 1/8 inch thickness; cut into 4-5 inch squares. Fill squares and pinch opposite corners and seal. Place in boiling water, reduce to a simmer and cook for 5-8 minutes or until pierogi come to the top. Take out.
Melt some butter in a fry pan and brown the pierogi, serve warm.
(Fillings of pierogi can be cheese, potato, sauerkraut or any fruit)
http://www.livebinders.com/play/play/163745 for Images