Ingredients

• 1 large fennel bulb
• 1 large orange
• 1 pink grapefruit
• 3 tbsp olive oil
• salt and freshly ground black pepper
• 4 whole mackerel
• cleaned and gutted
• 100g/3½oz butter
• softened
• 1 tsp cayenne pepper
• 2 tsp sweet smoked paprika
• 1 tsp ground coriander seeds
• 1 tbsp golden caster sugar
• ½ tsp English mustard powder
• 2 tsp red or white wine vinegar

Directions

• Preheat the oven to 220C/425F/Gas 7.
• For the orange and fennel salad
• trim off the base of the fennel bulb with a knife
• then shave the fennel into very thin slices using a mandoline.
• Immerse the fennel slices in a bowl of iced water and leave to soak and crisp up for 10-12 minutes.
• Meanwhile
• peel the orange
• following the curve of the fruit.
• Hold the peeled orange over a sieve set on top of a bowl to catch the juices
• and cut along the membranes to remove the flesh of each orange segment.
• Squeeze out any juice from the pulp into the bowl and discard the pulp.
• Repeat the segmenting and juice collecting process with the grapefruit. Place the orange and grapefruit segments into a bowl and set aside.
• Whisk the collected citrus juices with the olive oil and season
• to taste
• with salt and freshly ground black pepper.
• Drain the fennel slices and mix with the citrus segments. Pour over the dressing and mix well.
• For the devilled mackerel
• heat the grill to its highest setting.
• Using a sharp knife
• slash each mackerel at 2cm/1in intervals along both sides
• then place into a baking dish.
• Mix the butter
• cayenne pepper
• sweet smoked paprika
• coriander
• caster sugar
• mustard powder and vinegar together in a bowl. Season well with salt and freshly ground black pepper.
• Rub the spiced butter all over the mackerels
• including inside their cavities.
• Place the mackerel onto a grill tray and place under the grill to cook for 4-5 minutes on each side
• until the fish is just firm and cooked through.
• To serve
• place a fish onto each plate and serve with the fennel
• grapefruit and orange salad on the side.