I have eaten exactly 1/4 of a hard-boiled egg in my life, and it was in a salad on the plane on the way to Berlin. It was … fine. At the time, I didn’t realize how appropriate this experience was. Eggs that have been boiled are quite popular in Germany. At least, they are judging by the popularity of cups to hold them in. How popular are egg cups, you ask? Well, the cupboard in the furnished apartment we’re renting contains (among other things) three coffee cups… and four egg cups. Egg cups, as far as my research has taught me, are best for soft-boiled eggs, which I’ve never eaten. I’ve only…