-
Preheat the
oven 180°C/350°F/Gas
mark 4. Grease a 25cm/10in loose bottomed cake
tin and line with baking parchment.
-
To make the
sponge, whisk together the egg yolks and sugar
in a bowl until pale and thickened. Gently fold
in the almonds, flour and lemon juice.
-
Whisk the egg
whites in a separate bowl until just peaking.
Gently fold a spoonful into the egg yolk
mixture, then fold in the remainder.
-
Turn into the
prepared tin and bake for 20 minutes until well
risen and just firm. Leave to cool in the tin
for 5 minutes, then turn out on to a wire rack
and cool completely.
-
Wash the tin
and reline the base and sides with baking
parchment. Carefully halve the sponge
horizontally and place the bottom half back in
the tin.
-
To make the
mousse, place the rosewater in a heatproof bowl
with the water. Sprinkle the gelatin over and
set aside for 5 minutes. Set the bowl of gelatin
over a pan of simmering water and stir until
dissolved.
-
Whip the
cream until it just holds its shape. Fold the
cream and the custard together. Gradually pour
the gelatin into the mixture, stirring well all
the time.
-
Carefully
pour over the sponge in the tin, then level and
place the other half of the sponge on top. Chill
for several hours, until the mousse has set.