Souvlaki is Greece’s favourite street food. A healthier alternative to fast food, it is sold everywhere in Greece but there are plenty of places to get it elsewhere, especially in London. Also, it is delicious. I headed down to the Great British Food Festival at Chiswick House a few weeks ago and sampled their gorgeous souvlaki. It was as good as I remembered from Greece. The Great British Food Festival is a fun day out, offering a selection of food. It is also based at beautiful locations, which makes it extra nice, I think. Chiswick House and Gardens was a gorgeous location and our entry fee meant we could take…