Источник: кулинарный блокнот Mashun'ka
7 ounces plain flour
3 1/2 ounces corn flour
Ice-cold water, preferably soda or sparkling
3 pounds of assorted vegetables (see below)
Dip sliced vegetables (zucchini, onions, eggplants, carrots, bell peppers, sweet potatoes, string beans, broccoli, wild mushrooms, fresh herbs, and bok choy) any vegetables will work but these are the most commonly used) into the batter mixture and shake off any excess.
Deep fry vegetables in a wok or deep fat fryer (you can use a frying pan if you do not have anything else, you just need about 7cm/3 inches of clean oil) at 200C/400F/Gas 6 until the batter is light golden in color and crisp. (Any large amounts of hot oil in a kitchen, especially in woks which are not always that sturdy, scare me, please be careful and do not leave the pan unattended.) Turn the vegetables at intervals to ensure that both sides are cooked equally and then fish them out with a slotted spoon, shaking off any excess oil. Place them on kitchen paper towels and eat as soon as possible. The reason that I keep going on about eating them so quickly is because as your hot cooked vegetables cool down inside the batter they begin to steam, making them less crisp as time goes on. Good tempura should be crispy and is one of those things that should be made and cooked quickly and eaten straight away.