1 Heat oven to 180C/fan 160C/gas 4 and
put the kettle on. Butter and line a deep 20cm
square cake tin. Sift the flour and spices into
a bowl. Beat together the butter and sugar
until light and fluffy in the food processor,
then beat in the golden syrup. Dissolve the
bicarbonate of soda in 200ml boiling water,
then gradually pour through the spout of the
processor. Pulse in the flour, then add the
eggs, mixing briefly. Remove the bowl from
the processor, then gently stir in the rhubarb.
2 Pour the mixture into the tin and bake
for 50-60 mins, until the cake feels firm to
the touch and springs back when pressed.
Cool in the tin for 5 mins, then turn out
and cool on a wire rack. Dust with icing sugar.