If you're still looking, I've had good luck by starting with a can of the plain-style artichoke hearts, quarters, or bottoms, completely drained. Then I mix up a batch of Good Seasons Italian dressing. Combine the two in a glass jar and stick it in the refrigerator for a couple of days. Invert the jar when you happen to think about it--maybe 4 times over the two day period. If that doesn't provide a spicy enough taste, add red pepper flakes to taste when you make up the next batch.
This also works really well with fresh mushrooms. You can keep them in the fridge for a couple of weeks and they get even better. I don't know how long they will last under refrigeration since I have limited will power and they taste mighty good.
Crusader Rabbit