Intranasal odour of... chicken!

This old zombie has lumbered from the grave, prompting me to remember a post I made. If I eat roast chicken - either real roast chicken or, much more noticeably, “roast chicken flavour” potato crisps, then an hour or so later I get a very noticeable “echo” of the flavour that seems to emanate from inside my nostrils. It persists for several hours.

Does anyone else experience this? Any ideas what might cause it? The delay suggests that it’s some compound that gets metabolised and then excreted. Like aspara-pee, but in the nose.