I often try to use olives from Puglia or even "taggiasche" (more little) typical from Liguria. And both type of these olives have the nocciolo inside ( sorry I don't know how to translate nocciolo in english). Or I use also simple black pitted olives.
@ Myp,
The Word Nocciolo, is either called a Pit, in Canadian or Usa English or a Stone in British English.
I would like to get some Black Olives from Puglia .. However, Kalamata are very easy to purchase here at the Mercat de La Boqueria in Bari Gotico Main Market of Barcelona.
I am thinking to do a récipe on Tapenade which a dear friend in Greece had given me many many years ago and I still use the same traditional récipe and we still keep in contact. We were over to see her and her husband and family a couple of years ago. I am a grand fan of Greek Cuisine, and especially of the Aegean Islands ..
Have a wonderful weekend ..