Combine flour, sugar, soda and salt. Cut in butter until
fine crumbs form. Mix in caraway, raisins and currants;
add buttermilk for dough. Stir until evenly moistened.
Gather dough into a ball and knead about 16 turns on a
lightly floured board. Pat into a smooth ball, then into a
flat 1-in. thick round. Place on greased baking sheet.
Slash and X about 1/4 in. deep completely across each
round; brush with remaining buttermilk. Bake in a 375
degree oven until deep golden, 30-35 minutes. Serve