In large bowl, stir together flour, sugar, raisins and caraway seeds, baking powder, baking soda and salt.
In separate bowl, whisk together buttermilk, butter and egg; pour over dry ingredients and stir just until moistened.
Turn out dough onto lightly floured surface; knead lightly just until dough holds together.
Place on greased baking sheet; flatten into 9-inch round. With sharp knife, score top into eights. Bake in 375 degree F oven for 45 to 50 minutes or until cake tester or wooden pick inserted in centre comes out clean. Let pan cool on rack for 5 minutes before serving.