Cream together butter and icing sugar.
Preheat the oven to 180 °C
Beat in vanilla essence, cornflour, cake flour and mix to form a soft dough.
Place in cookie press and press out shapes on a baking sheet lined with baking paper and lightly greased with butter or sprayed with non-stick spray.
Bake for 10 minutes until pale brown.
Leave to cool and sandwich biscuits together with melted chocolate.
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