Rosemary-Grilled Mackerel with Mustard-Dill Mayonnaise
- TOTAL TIME: 25 MIN
- SERVINGS: 4
In late summer, Rachel Allen’s sons, Joshua and Lucca, fish for mackerel, and she has become an expert at preparing it. “It has a strong flavor that is not shy,” she notes, “so it goes well with other strong flavors, like mustard and dill.”
- 1 large egg yolk
- 2 tablespoons Dijon mustard
- 1 tablespoon white wine vinegar
- 1 teaspoon superfine sugar
- 1/2 cup sunflower oil
- 1 tablespoon finely chopped dill
- Kosher salt
- Freshly ground pepper
- 1/4 cup extra-virgin olive oil
- 2 garlic cloves, minced
- 3 tablespoons minced rosemary
- 1/2 teaspoon finely grated lemon zest
- Four 6- to 7-ounce Boston or Spanish mackerel fillets
- In a medium bowl, whisk the egg yolk, mustard, vinegar and sugar. Gradually whisk in the sunflower oil; as the mayonnaise starts to emulsify, add the oil in a thin stream, whisking constantly, until thickened. Stir in the dill and season with salt and pepper.
- Light a grill or preheat a grill pan. In a bowl, whisk the olive oil with the garlic, rosemary and lemon zest. Brush the mixture over the mackerel fillets; season with salt and pepper.
- Grill the fillets skin side down over high heat until the skin is nicely charred, about 2 minutes. Turn the fillets and grill until just cooked through, about 2 minutes longer. Serve the mackerel with the mustard-dill mayonnaise.
Minerally, dry Alsatian Riesling.
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