Chocolate wholemeal shortbread hearts

Cream together the butter and sugar until light and fluffy. Work in the flour to form stiff dough. Roll out dough on a floured surface until 3mm thick. Cut into heart shapes and place these on an oiled baking tray. Gather together the off cuts and re roll to make further biscuits. Bake in a pre-heated oven at 180°/Fan160°C/350°F/Gas 4 for 10-12 minutes. Transfer the biscuits to a wire rack to cool. Break the cooking chocolate into pieces and melt gently. Dip one side of each biscuit into the chocolate then return to the wire rack to dry.