Chocolate and chestnut mousse

I first tasted sweet chestnut purée years ago in a café in Paris and, along with chestnuts roasted on the street over smoky coals, they became but a distant memory of great trips abroad until, hooray, Australia started growing its own chestnuts and finally started producing its own purées.

This is a very simple chocolate mousse that I’ve topped with shop-bought sweet chestnut purée. The combination makes for a truly decadent dessert—but you do need to serve it with a bit of whipped