Celeriac & lemon thyme crème brûlée

There ought to be a custodial sentence for messing with the traditional crème brûlée, but mess with it I have. Celeriac and lemon thyme sounds an unlikely combination for a brûlée, but it is, I promise, really very fine. If you haven’t any lemon thyme, lemon verbena works perfectly well, or you can substitute a couple of sprigs of regular thyme with some finely grated lemon zest. When I made the brûlée opposite, I had an accident that turned into a happy one: the blowtorch used to finish th