1 cup all-purpose flour
1/4 teaspoon salt
1/3 cup water
1 egg
1/2 pound mixed ground beef, lamb and pork (by taste)
1 onion, chopped (about 1/4 cup)
1/8 teaspoon ground black pepper
1/4 teaspoon salt

Mix ground beef, lamb, pork, onion, 1/4 teaspoon salt and 1/8 teaspoon ground black pepper; reserve. Mix flour with egg (yolk and egg white) and water; 1/4 teaspoon salt until a soft dough forms. Knead on floured surface until dough is elastic. Divide into 1-inch round pieces. Roll each piece so that they are 1/16 inch thick. Fill each piece with the meat mixture; fold into half-moons. Pinch edges together and connect the opposite sides. Pelmeni can be frozen to be cooked later, or cooked immediately. To cook pelmeni, boil about 1/2 gallon of water; carefully drop pelmeni into boiling water. Boil for 20 minutes. Serve with butter, sour cream or vinegar; add pepper and salt to taste.