Step by step

Gently fry the garlic and parsley in extra virgin olive oil

The sea urchins must only be warmed though, and absolutely not cooked! Add them to the pasta at the last minute and heat everything quickly!
Fishermen say that only the 'female' urchins are edible, being smaller and paler, whereas the 'male' ones are not. They are wrong! The fishermen are, in fact, talking about two completely different species!