1 large courgette, coarsely grated (about 250g/9oz)
2 tbsp chopped fresh coriander (or other fresh or dried herbs)
1 onion, finely chopped
1 tbsp mint sauce
salt and freshly ground black pepper
75g/2陆oz plain or gram flour (approximately 5 heaped tbsp)
3 tbsp yoghurt, cr猫me fra卯che or soured cream (dairy-free if required)
1 egg, lightly beaten