Although we didn't get footage of that first bowl, Jenner did post a video of herself enjoying a second round of Cinnamon Toast Crunch (plus milk) on Snapchat. It's a bit like watching a baby take its first steps.
Also on Snapchat, Jenner cleared up that she has had cereal before, but adding milk was revelatory:
"So I think people were a little confused when I tweeted that last night was the first time that I ever tried milk with my cereal. That is a fact," she wrote. "Everybody has their personal preference. I never preferred soggy cereal. I just really enjoy my dry crunchy cereal and I know there's other people out there that agree with me. So I just think as a young child always eating dry cereal ands never wanting to sog up my cereal, I have just gotten used to it where I never wanted to do it until last night."