I tried my hand at this old-school Boiled Mackerel recipe this week, eager to see how the humble fish would fare in my modern kitchen. I found the process surprisingly calming—a gentle simmer, a thorough skim, and a dash of patience. The fish emerged tender and flaky, the saltwater infusing it with a subtle, clean flavor. What truly delighted me was the fennel garnish—an unexpected touch that added a refreshing anise note, balancing the richness of the fish. I paired it with a simple fennel sauce, as suggested, and it was a hit. This recipe is perfect for the weeknight cook looking to mix up their routine with a vintage-inspired, low-effort dish. It's not a looker, but it's a delight to eat. Serve it with a side of crusty bread to soak up any remaining sauce, and you've got a meal that's as satisfying as it is simple.