The structure here is worth understanding before you start: this is not a chocolate cake with walnuts in it. The walnuts are ground to a flour substitute, carrying the cake's body, and the chocolate is a delivery vehicle for the fat and bitterness that keeps the date sweetness in check. Get that hierarchy wrong and you've got a dense, cloying square of regret. Freshness of walnuts is non-negotiable. Goh flags this explicitly, and she's right — rancid walnut fat is one of the more unpleasant flavors in baking, and it concentrates as you grind. Smell them before you start. If they smell like old paint, buy new ones. The espresso does two things: it softens the dates for pureeing and it cuts sweetness at a structural level, not just as flavoring. The quantity — 120ml of just-brewed espresso to 150g of dates — is calibrated. Don't substitute instant or cold brew; you need the bitterness and heat working together. The meringue fold is where most home bakers will lose the texture. The instruction to fold in one-third first to loosen the batter is standard but critical — the batter coming off the walnut-chocolate base is dense enough to deflate egg whites on contact if you try to combine them in one go. Be aggressive with the first third, then gentle with the rest. The bake time (55-60 minutes at 180C/160C fan) produces a center that's deliberately underdone by conventional standards. The 'slight wobble' and 'moist streaks on the skewer' are not error states — they're the target. The cake sets further as it cools completely in the tin. Pull it early and you have a warm flourless chocolate cake. Wait, and you have something denser and more coherent. Serving with crème fraîche is the right call. The fat and slight acidity of crème fraîche does the work that cream won't — it cuts through rather than adding to the richness. Poached pears would extend this into a plated dessert with enough structural contrast to justify the effort. This is a recipe that rewards reading once all the way through before touching a bowl. The sequencing — dates soaking while nuts process, food processor used without washing for the date puree — is efficient and intentional. Follow the order and it's a 90-minute project. Improvise and you'll find yourself with bowls in the wrong states at the wrong times.
