In which country did pesto sauce originate?

my sons absolute favourite since he was 8yrs now he's 15! times gone so quick, like the jars of pesto!

Well, I’m nosy. What does pesto mean in Italian? It means to pound or crush. They used a mortar and pestle to prepare the sauce.

little b, You’ve never been anywhere so no need to keep saying it!

lit b, There is really not enough room for all the "'never-beens'"