Are you thinking of cornichons?

A pickled what? Onion? Egg? Chilli? Cucumber?
Be more descriptive with your feedback… Please.

I had a friend who recently started growing things I his garden. The cucumbers out grew everything. When I went to his house there was cucumbers everywhere. In jugs of water in the fridge, everywhere.
I said why don’t you make gherkins? He replied with “dude I’ve got too many bloody cucumber why would I start growing gherkins.”. I had a good laugh.