Spanish Mackerel and Serrano Ham En Brioche, Capers, Piquillo Peppers, and Lemon Confit

Mackerel

• 1 side Spanish mackerel (455 grams), skin on, bones removed
• kosher salt
• 1 to 2

This dish is packed with big, harmonious flavors—ham, capers, lemon, and peppers—that contrast with the assertive mackerel and create a vivid plate. It’s kind of a sandwich in a sandwich. Dry-cured ham is placed between two fillets, which are cooked sous vide, then sandwiched in brioche, like a grilled sandwich.

The Spanish capers, lemon suprêmes, and piquillo are not only bold accompan