1 small green chilli, finely diced
4 garlic cloves, finely diced
1 tsp fresh root ginger, peeled and finely diced
2 large spring onions, chopped
2 fresh curry leaf stems, leaves picked
salt and freshly ground black pepper
1 tsp madras curry powder
2 tsp black mustard seeds
2 tsp yellow mustard seeds
oil, for brushing
3 tbsp red wine vinegar
1 tbsp vegetable oil, plus extra for frying if needed
2 veal rib eye spiral cut, about 350g/12oz