Method:
1 Pour oil into a medium saucepan until one-third full. Heat over medium-high heat until hot..
2 Meanwhile, whisk flour, ice cubes and enough soda water in a bowl to make a batter do not over mix, flour should still be a little lumpy. Dip the bok choy into the batter allowing excess to run off, then deep fry, in batches. Drain on paper towel.
3 Combine the black vinegar, chilli, ginger and chives in a bowl. Serve with tempura bok choy