Grilled Mackerel with Beetroot

Instructions

1. 1

   Preheat your grill to medium-high heat. Toss the quartered beetroots with 2 tablespoons of olive oil, salt, and pepper, then wrap them in foil and place on the grill for 20-25 minutes until tender, turning the packet halfway through cooking.

   Tip: Wrapping in foil prevents the beetroots from drying out and makes them easier to handle.

2. 2

   While the beetroots cook, prepare the horseradish cream sauce by whisking together Greek yogurt, grated horseradish, minced garlic, Dijon mustard, lemon juice, and fresh dill in a small bowl. Season with a pinch of salt and pepper, then refrigerate until needed.

   Tip: Make this sauce while waiting to allow flavors to meld together.

3. 3

   Pat the mackerel fillets dry with paper towels and brush both sides generously with the remaining olive oil. Season the skin side with sea salt and black pepper, leaving the flesh side unseasoned for now.

   Tip: Drying the fish helps achieve a crispy skin when grilled.

4. 4

   Place the mackerel fillets skin-side down on the grill grates and cook for 4-5 minutes without moving them, allowing the skin to crisp up beautifully.

   Tip: Resist the urge to move the fish; let it develop a golden crust.

5. 5

   Carefully flip the fillets over and season the now-exposed flesh with salt, pepper, and lemon zest. Grill for another 3-4 minutes until the flesh is opaque and flakes easily with a fork.

   Tip: Mackerel cooks quickly, so watch carefully to avoid overcooking.

6. 6

   Toast the chopped walnuts in a dry skillet over medium heat for 2-3 minutes, stirring frequently until fragrant and lightly golden. Remove and set aside.

   Tip: Toasting enhances the nutty flavor and adds pleasant crunch.

7. 7

   Transfer the grilled mackerel and roasted beetroots to serving plates. Drizzle with the horseradish cream sauce, scatter the toasted walnuts over the top, and finish with a squeeze of fresh lemon juice.

   Tip: Serve immediately while the fish is warm for the best flavor and texture.