Oven 200°C/180°C fan forced

To make the brochettes

Thread seafood onto the skewers in equal proportions adding one bay leaf per brochette.

Mix together the olive oil, lemon juice and seasoning in a small bowl and brush onto the brochettes. Cover and leave to marinate in a cool place for 1 hour.

Hollandaise preparation

Place the white wine, bay leaf and peppercorns into a small pan and reduce to about 2 tablespoons. Strain the liquid into a small bowl and reserve. Clean the pan.

Fill a medium saucepan to about a ¼ full with water, set on the hob over a medium heat and bring to a gentle simmer. Place on a lid until required.

Heat the butter in the clean small pan until just melted. Set to one side.

To cook the brochettes

Place the empty grill over a medium heat on the hob and allow it to heat for several minutes. Do not add oil to the cold pan before heating. Test the grill temperature by dropping a few drops of cold water over the hot surface. If it sizzles and the water evaporates almost immediately, it is hot and ready to use. If the water produces steam and has no sizzle, heat the pan for a little longer and repeat the test again. Use an oven mitt or cloth for gripping the cast iron handles at all times.

When the grill is ready, lightly brush with vegetable oil. Pat away any excess moisture from the brochettes using some kitchen paper and cook on the grill for 3-4 minutes without turning, once sealed and nicely bar marked, turn and cook the other side.

Place the cooked brochettes in a dish, cover and keep warm whilst making the hollandaise.

To make the hollandaise sauce

Whisk together the egg yolks and the reserved reduced white wine mixture in a large bowl.

Place the bowl over the just simmering water and whisk continuously and vigorously until thickened and the foam will make a trail.

Remove the bowl from the heated water and whisk in 2-3 tablespoons of the melted butter, return the bowl to the pan of hot water and whisk for 1 minute. Repaet this until all the butter has been incorporated. To prevent the outer edges cooking too quickly scrape the sides of the bowl as you whisk, this will keep all the sauce at the same temperature and prevent lumps. The end consistency should be like thick mayonnaise.

Add the reduced fish stock a little at a time whilst continuously whisking over the water. Season to taste with a squeeze of lemon juice, salt and pepper.

Pour into a warmed well insulated sauce jug or warmed individual small dishes and serve immediately with the cooked brochettes.