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To make the dough,
sift the flour and salt into the bowl of a blender
or food processor, then add the hazelnuts and icing
sugar.
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Add the butter and process until the mixture
resembles fine breadcrumbs. Add the egg yolk and the
water. Process to a smooth dough. Wrap in Clingfilm
and chill for 1 hour.
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Preheat the oven to
190°C/375°F/Gas mark 5. Grease a large shallow
baking tray. Roll out the dough on a lightly floured
surface to 3mm/1/8in thick.
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Using a fluted round
pastry cutter, stamp out 1cm/1/2in rounds. Place
slightly apart on the baking tray. Prick with a fork
and chill for 15 minutes.
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Bake the biscuits for 8 to
10 minutes until golden. Cool on a wire rack.
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To make
the topping, soak the raisins with the water mixed
with the rum. Dip the pear slices in the lemon
juice. Melt the butter and sugar in a large frying
pan.
-
Add the pear slices with the lemon zest and fry
over a medium heat until the pear slices are soft
and the butter and sugar are just starting to
caramelize.
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Stir in the raisins, cook for 30 seconds
and remove from the heat. Using a slotted spoon,
remove the pears and raisins from the pan. Boil the
syrup until it is thickened and coats the back of a
spoon. Leave to cool.
-
Top each biscuit with a little
of the pear mixture and sprinkle with the chopped
hazelnuts.