In a blender, place the bread and pulse until it’s all crumbs.
Add all the remaining ingredients except the olive oil and blend together. Gently stream in the olive oil and continue to blend until you get a smooth paste. At this stage, you can taste the mixture and see if any additional salt is needed. Be careful, not to over salt.
Fill a piping bag with the mixture. Take each olive and stuff the hollowed centre. Do not worry if the stuffing oozes out slightly.
Place the olives in a bowl, drizzle with olive oil and sprinkle some extra parsley on top. Mix well. Place in the fridge prior serving. Ideally, let the olives sit and marinate overnight before serving so that their flavour is more enhanced.