Somebody has been chewing the Genovese basil, but not the Dark Opal. That somebody is missing out!
Dark Opal basil is totally delicious. It’s said to have a stronger anisey taste, but I don’t notice a difference. Of course, I pile basil leaves on sandwiches like other people do lettuce so maybe an overwhelmingly-strong basil flavor is my kind of thing.
You can substitute Dark Opal basil in any recipe that calls for green sweet basil. Try pesto for fun– it turns your mouth purple.