Potato and Cheese Pierogi

INGREDIENTS
6 cups all-purpose flour
3 eggs
1 pinch salt
water as needed

5 pounds potatoes, peeled
1 pound processed cheese, cubed
salt and pepper to taste
onion salt to taste

Preparation:
1. Bring a large pot of salted water to a boil. Add potatoes and cook until tender but still firm, about 15 minutes; drain.
2. Combine flour, eggs and salt. Mix in a little water at a time until dough is somewhat stiff. Roll dough in small sections about 1/4 inch thick. Using a large biscuit cutter or drinking glass, make circle cuts.
3. To make filling: Mix together potatoes, cheese, salt, pepper and onion salt. Fill each with 1 to 2 tablespoons of the potato mixture, fold over and seal edges. To cook, bring a large pot of water to boil, carefully dropping in one at a time; stir once. They are done when they float to the top.

Recipe: http://allrecipes.com/Recipe/Potato-and-Cheese-Pierogi/Detail.aspx?rss=3