Old-Fashioned American Shortbread

1 Cup unsalted butter
1 Cup sugar
3 Eggs
½ Teaspoon Caraway seeds
4 Cups sifted flour

In a large mixing bowl, cream together the butter and sugar. Beat in the eggs, one at a time. Mix in the caraway seeds. Blend in the flour, ½ cup at a time, and work the mixture into a smooth dough. The dough will probably be too stiff to use an electric mixture or food processor, and is best kneaded by hand. On a floured work surface, roll out the dough to a thickness of ½ inch. Cut the dough into 2-inch squares and transfer the squares to the baking sheets. Bake for about 15 minutes.