A friend boiled this egg using the Food Lab method, and it came out like this: with a ton of little perfect craters like some kind of cartoon moon. He's never seen anything like this before, and neither have I. He did not make pinholes in it or crack the shell or do anything not described in the cooking method. Also, he's used that way of making boiled eggs before and this hasn't happened.
The method is as follows:
Pour the water into a 3-quart saucepan, cover, and bring to a boil over high heat. Using a large slotted spoon or spider, carefully lower the eggs into the boiling water and cook for 30 seconds. Add the ice cubes and allow the water to return to a boil (be patient, this could take a few minutes) then reduce below a simmer, about 190º. Cook for 11 minutes. Drain the eggs.
What causes a hard-boiled egg to turn out like this?