Crab Gratin with Fries & Samphire

Crab Gratin with Fries & Samphire

Take a trip to the Cornish seaside with this delicious crab gratin. You'll bake responsibly-sourced crab in a creamy mustard sauce, then top with panko crumbs and grill till crisp and golden. Serve with fresh samphire and homemade fries for extra satisfaction.

Low sat fat

Serving size

Cook time: 40 mins
Cuisine: French
Food group: Shellfish
Allergens: Mustard, Nuts, Crustaceans

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Cooking Instructions

The protein cooking time listed in this recipe has been updated.

As of December 2025, we’ve revised cooking times for all our proteins to reflect improved food safety guidance.

Check out the latest recommended times in our Cooking Guidelines.

  1. Preheat the oven to 240C / fan 220C / gas mark 9 / air fryer 200C. Cut the potatoes into fries. Place onto a lined baking tray and toss with 1 tbsp oil, a pinch of sea salt and black pepper. Roast for 25-30 mins / air fryer 15-18 mins, until soft and golden.
  2. Finely chop or crush the garlic. Rinse the spinach. Heat a medium frying pan on medium-high heat with 1 tsp oil. Add the garlic and cook for 1 min. Then add the spinach and cook for a further 1-2 mins, until wilted.
  3. Meanwhile, finely chop the chives. Add half the chives to a small bowl along with the crab, yoghurt, mustard and a pinch of nutmeg (to taste). Remove the spinach from the pan, squeeze out any excess liquid and add to the bowl. Mix well and season generously with sea salt and black pepper.
  4. Once cooked, remove the fries from the oven. Preheat the oven grill to medium (200C). Transfer the crab gratin to a small baking dish. Cover with the panko breadcrumbs and drizzle with 1 tsp oil. Season with sea salt and black pepper. Place the gratin under the grill for 5-6 mins, until the panko is golden (keep an eye on the dish to prevent it from burning).
  5. Meanwhile, wipe the spinach pan clean and reheat with 1 tsp oil on high heat. Add the samphire for 2-3 mins, until cooked.
  6. Serve the fries and samphire with the crab gratin. Garnish with the remaining chives.

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