The last time I made these they didn’t work. Wait! It wasn’t the recipe’s fault. It was the oven. The element had blown and when I retrieved them, they were raw. I scraped them back into the bowl, slammed it in the fridge and called a friend. Armed with baking trays, raw cookie dough and a bottle of thank-you fizz, I marched round in a huff. The resulting cookies were perfect. All inner chew, outer crunch and they’d barely spread. You see, the chilled dough made for perfectly shaped cookies. A happy accident.