Preheat oven to 400 degrees F. Rinse raisins in hot water, and then drain well.2.
Sift together all dry ingredients. Cut in margarine until a coarse, mealy consistency.3.
Add buttermilk, raisins and caraway seeds. Stir all ingredients.4.
Turn dough into a greased 8-inch round cast iron skillet and make a crisscross on the top.5.
Bake in preheated oven on 400 degrees F for 1 hour or until golden. Test with a toothpick (a toothpick inserted in the center of the bread should come out clean). Serve with sweet cream butter or clotted cream (clotted cream is a very thick cream available at some grocery stores and gourmet food stores).