Put the apples,
50g/2oz/4 tbsp of the sugar and the water in a
saucepan and bring to the boil. Simmer for 25
minutes, stirring occasionally to break up any
lumps. Leave to cool. Preheat the oven to 160 'C/325
'F / Gas 3. Thoroughly butter and flour a
1.75-litre tube tin.
Sift the flour,
bicarbonate of soda and spices into a bowl. Remove
30ml/2 tbsp of the mixture to another bowl and toss
with the raisins and 115g/4oz/1 cup of the walnuts.
Cream the butter
or margarine and remaining sugar together until
light and fluffy. Fold in the apple mixture gently.
Fold the flour mixture into the apple mixture. Stir
in the vanilla and the raisin and walnut mixture.
Pour into the tube tin. Bake until a skewer inserted
in the centre comes out clean, about 1
hours. Cool completely in the tin on a wire rack,
then unmould on to the rack.
For the icing,
put the sugar in a bowl and stir in the vanilla and
15ml/1 tbsp milk. Add more milk until the icing is
smooth and has a thick pouring consistency. Transfer
the cake to a serving plate and drizzle the icing on
top. Sprinkle with the remaining nuts. Allow the
icing to set.