I tried this Fennel Sauce for Mackerel, expecting a simple butter and herb combination, but I found a delightful aniseed flavor that danced across my palate. The fennel, finely chopped and briefly simmered in melted butter, released a fragrance that was surprisingly robust for such a short cooking time. The aroma was a revelation—it reminded me of a Mediterranean breeze, carrying the scent of herbs and the sea. This recipe is perfect for the weeknight cook seeking to elevate simple, budget-friendly ingredients. I used canned mackerel to keep costs low, and the fennel sauce transformed it into a dish that felt special. The key, I discovered, is not to skimp on the fennel—its bright, licorice-like note is the star of the show. Serve it with crusty bread to soak up every last drop of the sauce, and you'll have a meal that's both frugal and fabulous.