300g raw prawn, head and shell on
1/2kg mussel, cleaned
1/2 head of garlic (5~6 cloves), finely chopped
800g bottle tomato cooking sauce(puree)
500g dried spaghetti
1 fresh chilli (discard the seed, finely chopped) or 1/2 tbsp chilli paste
olive oil
knob of butter
sea salt and black pepper to taste
1/2 tbsp sugar
a handful of italian parsley(or flat-leaf parsley)