It’s pronounced “pick-leez.”
Pikliz is to Haitian cuisine what giardiniera is to Italy, a tableside condiment of pickled veggies with a hot pepper kick, pikliz is typically used to add tangy brightness to rich meats and fried dishes. This one is especially lovely. It’s made by Haitian-born Blonde Beauchamp, who served the tangy condiment to her friends at dinner parties and—after an overwhelmingly positive response from her guests—made making pikliz into a business.