250g butter, 1cup icing suger, 1cup cornflour, 2cups flour or more, vanilla essenc, cocoa pwdr as required.
Beat butter and suger until light and creamy. Add flour and cornflour and mix togeda. Add mre flour if the doug is sticky. Divide dough into half. Add cocoa to one half and leave the other plain. Make two balls frm the cocoa mixture and leave the other two plain. Roll into long shapes and place alternate colours nxt to each other and press slightly. Cut into 6mm slices. Put in greased baking tray and bake.