[A reader named Theresa was inspired by Sara's Vareniki Product Review to post her own recipe for Potato Vareniki. Thanks, Theresa!]
For the dough:
2 cups flour
1/2 teaspoon salt
1/3 cup water
For the filling:
1 large onion, chopped
2 tablespoons butter
2 cups. mashed potato
Salt and freshly ground pepper, to taste
1/2 cup melted butter
Combine flour and salt. Beat eggs and water together lightly. Make a well in the flour mixture and add the eggs. Incorporate. Knead on floured surface until dough is pliable. Form into small balls, cover with moist towel and let rest 1 hour.
Sauté onion in butter until lightly browned. Add mashed potato. Season with salt & pepper.
Roll dough into circles, place 1 tablespoon potato mixture into enter of each. Brush edges with water or broth, fold dough over filling to make half moons. Press around edges with tines of a fork. Dust each with flour.
Bring a large pot of salted water to a boil. Drop vareniki into water and cook until they rise to the top, about 4 minutes.
When finished, drizzle the vareniki with melted butter, and top with plenty of chopped dill. These are delicious served with sour cream.