1 red chilli, finely chopped
115g/4oz leeks, trimmed, finely sliced (prepared weight)
2 tbsp chopped fresh parsley
2 medium red onions, finely sliced
1 tbsp chopped fresh thyme
1 tsp English mustard
freshly ground black pepper
175g/6oz fresh white breadcrumbs
2 garlic cloves, crushed
陆 tsp flaked sea salt
75g/2陆oz light brown muscovado sugar
5 tbsp sunflower oil
2 tbsp sunflower oil
5 tbsp white wine vinegar
25g/1oz butter
150g/5oz Caerphilly cheese or Welsh cheddar, finely grated
2 free-range eggs, separated