The cake needs several hours in the fridge to set ... For the matcha (green tea powder), there’s no need to use the super-expensive ceremonial-grade quality, but do buy one that you are willing ...

before tucking into a slice of cake with a very special ingredient. 1. Preheat the oven to 180oc / 160 fan. 2. In a mortar and pestle, grind the earl grey tea with sugar and orange zest.