Richard Fadeley wrote:Also 70% Cocoa dark chocolate is another knockout match.
With red Bordeaux? Really? I find chocolate too sweet (70% is still pretty sweet) and/or too astringent (70% will already be decently astringent) to make any great matches with dry red wine. When I am focused, I can usually return to red wine (Bordeaux included) after a chocolate dessert. But only after significant mouth-rinsing. And I would never go anywhere near saying it is a knockout match. Unless of course you mean the chocolate knocks out the appreciation of the Bordeaux

I would also have olives and maybe celery as well..
I love olives but they have quite a strong and bitter taste and I wouldn't say they are a 'great' wine match. Especially when eaten alone (i.e. not part of a cooked dish) and especially for an analytical tasting. Nibbling on olives while sipping a casual aperitif is one thing but if the purpose is a structured tasting then I think you are much better off with crackers/bread. Although I guess it does depend on the type of olive. Maybe if you picked one of the blandest ones.
Celery is not bad, it is blandish, but still has a kick and I wouldn't recommend it as a 'great' match. Same for apples, which will also make the wine difficult to taste. Isn't the old saying 'buy on apples sell on cheese'.
Of course I may have misunderstood this event. If it is a 'party' then sure, have all sorts of nibbles around as it won't really matter. But if it is a semi-formal analytical tasting, then I would just have neutral crackers/breads to cleanse the palate and support the stomach.
I know Peter said people were eating dinner beforehand so I guess you don't want to have any of the 'proper main course' dishes that would show red Bordeaux at its best as an accompaniment at the table. But, depending how ambitious you are you could have some sort of red meat-based appetizer/dish available for people to nibble on and see how the red Bordeaux blends with the fat/meat.