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Preheat the oven to
190°C/375°F/Gas mark 5. Grease a shallow 20cm/8in square
cake tin and line the base.
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Crush the biscuits in
a polythene bag with a rolling pin. Melt the butter in a
saucepan and stir in the
crushed biscuits until well combined.
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Press the mixture into the base of the cake tin. Beat together the
evaporated milk, egg, vanilla essence and sugar until
smooth.
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Stir in the flour
and coconut. Pour the mixture over the biscuit base and
level the top.
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Bake in the oven for 30 minutes. Leave to
cool in the cake tin for about 5 minutes, then cut into
squares. Leave to cool completely in the tin.
-
Carefully remove the squares from the tin and place them
on a board.
-
Melt the dark chocolate in a heatproof bowl
set over a pan of simmering water. Drizzle it over the
squares to decorate them. Leave the chocolate to set
before serving.