1 large spring onion, trimmed and roughly chopped
70驳/2陆辞锄 plain flour
陆 tsp baking powder
1 tbsp cornflour
pinch gochugaru, or other red chilli flakes
陆 tsp rice wine vinegar
pinch sea salt
陆 tsp toasted sesame oil
陆 tbsp soy sauce
1 tbsp vegetable oil, plus extra for frying
1 large free-range egg yolk
150驳/5陆辞锄 kimchi, roughly chopped, plus 1陆 tbsp kimchi juice (from the jar)