-
Mix the flour, salt and icing sugar in a bowl. Add
the butter and rub in with the fingertips. Mix with
enough cold water to form a firm dough. Wrap in
Clingfilm (plastic wrap) and chill for at least 20
minutes.
-
Knead gently on a lightly floured surface, roll out
and use to line a 23 cm/9 in flan dish (pie
pan). Prick the base with a fork.
-
Fill with crumpled
foil and bake in a preheated oven at
220°C/425°F/gas mark 7 for 10 minutes. Remove
the foil and return to the oven for 5 minutes to dry
out.
-
Beat together the egg yolks and sugar in a bowl
until thick and pale. Finely grate the rind from one
grapefruit and add to the mixture.
-
Squeeze all the
juice from that grapefruit and place in a saucepan.
Blend the corn flour with the water and stir into the
grapefruit juice. Bring to the boil and cook for 2
minutes, stirring.
-
Whisk into the egg yolk mixture
and return to the saucepan. Cook, stirring, for 3
minutes until thickened. Turn into the pastry case
(pie shell).
-
Cut all the rind and pith from the
remaining two grapefruit and segment the fruit.
Arrange the segments attractively on top of the
flan.
-
Melt the marmalade and brush all over the top
to glaze. Leave until cold, then chill and serve
with thick cream.