I enjoy recipes that begin with the gentle infusing of a liquid. I make that most restorative of broths, Thai tom kha gai, on a regular basis, and it is the initial steps of the recipe I find most soothing. Using the sturdy little cleaver I picked up in a market in Chiang Mai, I slice fat, pale-pink knobs of galangal into coin-sized discs, split shiny red chillies down their centre and bruise the papery outer stalks of lemongrass before throwing the lot into a pan of simmering water and coconut milk. It only needs a few minutes before the powerful aromas of Thailand have permeated the broth, promising the ultimate in sinus-clearing comfort. I also enjoy the sweet side of infusion: throwing a huge, fragrant handful of lemon verbena leaves into warm milk and cream, for example, to be churned later into an incredibly aromatic ice cream, or spiking a sugar syrup with cinnamon sticks, glistening vanilla pods, bruised green cardamom and maybe a furl or two of orange or lemon peel. I love the idea of capturing flavours in liquid, turning up the heat until their gentle perfume permeates and is locked inside, like an insect in amber.