Helen Goh’s recipe for flourless walnut, date and espresso cake | The sweet spot

With a deep, caramel richness and a bitter undertone, this cake is an excellent addition to your home baking roster There’s enough dark chocolate in this gluten-free cake to put it firmly in chocolate cake territory, but the hero flavour comes from the sweet, creamy nuttiness of walnuts, so it’s important to use very fresh ones, because stale walnuts can quickly turn bitter.

The dates bring a deep, caramel richness, while the espresso pulls everything back from being…