Key Lime pie made by Terry (thanks Terry) with the lime grown by the tree on my patio in West London. We first came across Key Lime pie in Key West, it's a classic American dessert made from condensed milk, eggs and a biscuit base. No cream, so relatively healthy.
Looking after a Tahitian Lime tree in London is so far no more problematic than looking after my apple trees. There are urban bees so pollination occurs naturally and the cold weather hasn't damaged the tree so far but the tree is in a spot protected from the wind and favoured by the sun.