This is one for the chocolate lovers (myself included). It’s rich and indulgent, which is why I love it. I can be a bit of a brownie purist – no nuts, ever! – but here I make an exception. The biscuit base stays nice and crunchy, while the tangy, salted creme fraiche topping cuts through some of the richness. You can serve this while it’s still warm for something a little more gooey, but it’s much easier to slice if you let it cool completely.
