In a large bowl, combine the first five ingredients. Cut in butter until mixture resembles coarse crumbs. Stir in the raisins and caraway seeds. Set aside 1 tablespoon beaten egg. In a bowl, combine buttermilk and remaining eggs; stir into crumb mixture just until flour is moistened (dough will be sticky). Turn onto a well-floured surface; knead about 10 times. Shape into a ball.

Place in a greased 9-in. round baking pan. Cut a 4-in. X, 1/4-in. deep, in the center of the ball. Brush the top with reserved egg. Bake at 350 degrees F for 1 hour and 20 minutes or until a toothpick inserted near the center comes out clean. Cover loosely with foil during the last 20 minutes if top browns too quickly. Cool for 10 minutes before removing from pans to a wire rack to cool completely.