When we moved into the castle we inherited a mostly neglected and weed-infested vegetable patch, which included a clump of thyme and a spindly coriander plant. The thyme is now the size of a small shrub and the coriander has gone to seed in spectacular fashion. I pulled it out yesterday and planted some spring onions in its place, but not before I cut off all the seed heads. Offering them to visitors is my new party trick - they are SO insanely coriander-y and fresh. Or, as Jeremy put it yesterday, "Bugger the leaves, let's just eat the seeds!"
If you've never eaten a fresh coriander seed then you need to get out into your garden right now (or make a mental note to do so if your garden is currently covered in slush). They're also good scattered in salads or over olives, but nothing beats eating them straight off the stalk.