Old-Fashioned Sugared Jelly Doughnuts

1/2 cup milk
1 teaspoon salt
2 packages yeast
3 eggs, separated
1/3 cup granulated sugar
1/3 cup butter
1/2 cup warm water
3 3/4 cup flour
Vegetable oil for frying
Sugar
Jelly

Scald milk; add sugar, salt and butter. Add yeast to warm water. Stir in milk mixture, egg yolks and 2 cups flour. Add remaining flour. For jelly filled, roll dough about 1/4-inch thick. For regular doughnuts, roll about 3/8 to 1/2-inch thick and cut.

Jelly Doughnuts: Place 1 teaspoon jelly on circle and brush top circle with egg whites on one side and seal. Fry at 375 degrees F until done.