Preheat the oven
to 180'C/350'F/Gas 4. Grease and line an 18cm/7in
square cake tin. Put a double piece of foil across
the middle of the tin, to divide it into two equal
oblongs.
Cream the
margarine and sugar. Beat in the eggs, vanilla and
almonds. Divide the mixture evenly into two halves.
Fold half of the flour into one half, with the
orange rind and enough juice to give a soft dropping
consistency. Fold the rest of the flour and the
cocoa into the other half, with enough milk to give
a soft dropping consistency. Fill the tin with the
two mixes and level the top.
Bake for 15
minutes, reduce the heat to 160'C/325'F/Gas 3 and
cook for 20-30 minutes, until the top is just firm.
Leave to cool in the tin for a few minutes. Turn out
on to a board, cut each cake into two strips and
trim evenly. Leave to cool.
Using the spread,
sandwich the cakes together, Battenberg-style. Roll
out the almond paste on a board lightly dusted with
corn flour to a rectangle 18cm/7in wide and long
enough to wrap around the cake. Wrap the paste
around the cake, putting the join underneath. Press
to seal.