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Preheat the oven
to 180°C/350°F/Gas mark 4. Grease a 20cm/8in
round cake tin and line with baking parchment.
-
Prick each orange a few times with a fork, then
place the oranges in a large pan, cover them
with water and bring to the boil.
-
Cook gently
for about 5 minutes, or until they begin to
soften. Remove and cool the oranges, then slice
them and remove the pips.
-
Dissolve the icing
sugar in the orange-cooking water and boil this
mixture for about 10 minutes to make a syrup.
-
Poach the orange slices in the syrup for about
10 minutes, or until the zest is tender. Cool
the slices in the syrup.
-
Combine the flour,
baking powder and caster sugar and rub in the
butter to form a crumbly mixture. Add the egg
yolks and the sour cream to make a soft and
workable dough.
-
Roll out the dough, put it in
the prepared tin and bake in the oven for 1 hour
or until the cake is lightly colored.
-
Turn the
cake out of the tin and place it on a baking
tray. Arrange a layer of poached orange slices
over the top, draining them of their excess
syrup.
-
Sprinkle the almonds on top. Put the cake
back in the oven for a few minutes to allow the
oranges to dry.