Preheat the oven to 180ºC/350ºF/Gas mark 4

Line the base & circumference of a 20cm/8'' round springform tin with non-stick baking paper

Add the 125g golden syrup to the base of the tin

Put all the sponge ingredients into the bowl of a food processor, adding the boiling water last

On the slowest speed and using the whisk attachment, mix together the batter slowly increasing the speed to medium until well combined

Pour the batter over the golden syrup in the tin

Bake for an hour

Carefully release the cake from the tin and invert onto a serving plate

Pour the warmed golden syrup on top and serve