Cut fruit into small pieces. In a large bowl coat fruit and nuts in 1 cup flour.
Cream together butter, brown sugar and egg yolks. Stir together flour and spices and add to the creamed mixture. In a small bowl dissolve bicarb soda into milk. Gradually add soda mixture and brandy. Turn mixture into the big bowl of fruit and nuts. Combine.
Beat the egg whites to stiff peaks. Fold into the dough.
Bake at 150 degrees C for 20 minutes or until lightly browned. Cool on wire racks. Biscuits should be soft.