Aod makes deep fried vegetables with Thai tempura batter (Japanese brands are not as good). She uses Cauliflower, courgette, baby corn, broccoli and carrot. The brand of tempura flour we use is here. You can get it in many Thai and Chinese shops. It takes 2-3 minutes until the flour gets a golden colour on a high heat. Best to cook in several small batches in a wok.