I adore this cake. It’s plain, it’s simple, it doesn’t rise in any notable way, I was skeptical. But it’s beautiful, dense and fudgy and lemony.
I modified the icing to use lemon juice rather than water and I wouldn’t change that. The idea of using warm water (in this case warm lemon juice) to help the process of smooshing the icing sugar is a good one.
Important correction for future indulgences: the bake timing of 40 minutes given was too long for my oven and my cake tin. Check after 30, but 35 is probably about right.
From Master It, Rory McConnell – pg. 545