Sylvia Peck's Potato Knishes

Potato Filling:
6 chopped onions
1 c. chicken fat or pareve margarine
4 c. mashed potatoes
2 eggs, beaten
salt and pepper to taste

Dough:
5 c. flour
pinch salt
1/2 tsp. baking powder
3/4 c. salad oil
1 c. lukewarm water
3 eggs

Mix all dough ingredients together until dough is easy to handle. Place in bowl and cover with a towel.

Sauté onions in fat until golden brown. Blend the rest of ingredients together. Roll out dough very thin and fill like jelly roll. Slice. brush with beaten egg. Bake at 350 degree oven on greased pan, cut side down, about 1 hour or until brown. May also be cut in circles with water glass, filled, and pinched together before baking, for a variation. (From "Try It You'll Like It," Temple Beth El, Richmond VA.)