Oysters with Namjim and Crispy Onions

For the oysters:

4 shallots or small onions, sliced

namjim (see recipe)

extra virgin olive oil

24 Gigas oysters

fresh seaweed, if available

sprigs of fresh coriander

For the namjim:

2 garlic cloves, peeled

4 tbsp fresh coriander, chopped

sea salt

1 green chilli, deseeded and chopped

2 shallots, finely chopped

3 tbsp lime juice

2 tbsp palm sugar

2 tbsp fish sauce (nam pla)