Blend the corn flour, a little sugar and a few
spoonfuls of the milk to a paste. Bring the
remaining milk to the boil in a nonstick saucepan,
then stir some into the paste.
Return the paste and
milk to the saucepan and cook, stirring, until thick
enough to coat the back of a spoon.
Remove the pan from the heat and stir in the
rosewater and lemon rind. Add more sugar, to taste,
and stir to dissolve.
Pour into a large serving
dish, or individual dishes, and leave until a skin
forms on the surface.
Scatter the chopped almonds and pistachios over the
top of the pudding, then leave until cold. Cover and
chill before serving.