Pierogies - cooking recipe

Ingredients

4 c. flour
1/2 c. oil
1 tsp. salt
2 eggs
5 c. precooked, mashed potatoes
1 c. cheese

Preparation

Mix first 4
ingredients and roll out flat.
Cut dough into 2 x 2-inch squares.
Fill with potato and cheese filling; fold in half.
Press firmly around edges.
Boil in water, then fry in butter and onion.