We like salt-crusted fish because it concentrates the flavour—and you can’t beat the wow factor. Smashing through the crust to reveal the juicy flesh inside is the perfect moment to casually mention to your guests how easy it really is: The casing is simply a mix of whipped egg whites and coarse salt. We’re hooked on serving it with a sauce vierge (think Mediterranean salsa) made with bell pepper, celery, tomato, chives, olive oil and a snappy splash of balsamic vinegar.