Molly huffs out a laugh at his Gordon Ramsay comment, but then she realizes that he maybe isn't joking.

"You're not serious."

And yet, this was Sherlock. He did a lot of favours for a lot of people and he was a semi-celebrity here (something she was still trying to get used to when strangers would approach them in public or the gossip rags would have a slow week and somehow their mundane outing turned into news). So Gordon Ramsay owing him a favour wasn't that out of the realm of possibility. At least not as much as it should be in the life of normal people.