Looking for a cake that is 100 per cent indulgence and zero per cent guilt? We’ve got this. As with other odd but popular combinations of chocolate with beetroot, pumpkin or zucchini, the success of this marriage lies in perfect balance. That you would not guess a quarter of this cake consists of chickpeas is testimony to a fruitful pairing. The subtle orange flavour seems to tie it all in together and makes for a cake that is moist, rich and moreish. It will have your guests guessing for days.