I don't see truffle oil specifically - it has truffle aioli which would obviously be a different condiment/ingredient. Their reaction in that clip seems to be

I don't see truffle oil specifically - it has truffle aioli which would obviously be a different condiment/ingredient. Their reaction in that clip seems to be in response to a few things: 1. the assertion there's no actual truffle in white truffle oil 2. that it's pungent and the contestant was pouring it on I imagine Ramsey is not opposed to truffles, per se, but certainly to fake scents manufactured to smell like truffles and using the flavor to excess.