One of the most wide-spread and well recognised of all Japanese foods is ebiten, or tempura prawns. Go to any Japanese restaurant around the world and you’ll find these battered delights served either on their own, sitting atop a bowl of noodles or spread seductively across a bed of rice as tendon; when they appear on the conveyor belt at a sushiya they never make it all the way round the circuit, being plucked off deftly by the hands of the hungry punters lucky enough to be seated at the start of the track. As deliciously simple as these deep fried prawns are, and they truly are- being one of the most delightful snacks available- they are only the starting point, the figurehead at the prow of the tempura ship, there are much more varied, maybe even greater tempura to be found if you’re willing to look further afield. Succulent toriten fried chicken from Kyushu, ikaten squid from Hokkaido, bird’s-nest-like mixed vegetable kakiage fritters, fish tempura from the Seto inland sea and perhaps the most traditional- yasai, or vegetable tempura.
When sixteenth century Portuguese traders were at their most prominent, and inadvertently spreading their cuisine across most of Asia, it was their deep fried foods that took hold in Japan, particularly a festival dish called Peixinhos da Horta, ‘little fish of the garden’. These battered and fried green beans were eaten on holy days when consuming fish or meat was forbidden, and provided a substantial alternative that was both economical and nutritious; although their likeness to fish is debatable, they remain a Portuguese favourite to this day. The Japanese took these battered mouthfuls and improved upon them, making the coating lighter and crispier, experimenting with more fillings, sauces to dip them into, and refining the whole process into the culinary art form that we know today. Yasai tempura holds the torch as the closest remaining relative of this venerable cooking technique; a fine, lacy covering of crisp, pale blond batter, encapsulating a steaming hot, perfectly cooked morsel of sweet, nutty kabocha or maybe a smooth, meltingly creamy slice of aubergine or a spicy, almost minty shiso leaf. As with all Japanese food, the vegetables used change with the seasons, the airy batter allowing the flavours of the fillings to concentrate as they steam within their protective shells and paint a picture of the subtly changing environment outside.
The key to making successful tempura at home is in the temperature of the batter- keep all your batter ingredients as cold as possible, and always make the batter immediately before you fry your ingredients to prevent the gluten from developing and giving an undesirably chewy texture.