Below I’ve listed the key chemicals found in a commonly available household product. I’ve drawn the chemical structures of principal components where simple and appropriate; given the E number or CAS number (however tempting Sigma-Aldrich catalogue numbers would be) if no simple chemical structure exists for an additive; and given the chemical formulae or name if neither of the above make sense. See if you can guess what this is! If no one gets it within 24 hours, I will post a clue.
Note: this week I have only included the key ingredients, and I’ve changed ‘common household product’ to ‘commonly available household product’ after one of my students pointed out that truffle oil, synthetic or not, was not common in their household!
If you answer on Twitter, it would be great if you DM’d me [@kjhaxton] with your guess so as not to spoil other people’s