Grilled red mullet on toast with tomato pickle

Ingredients

• 4 x 200g red mullets, scaled, gutted, butterflied and pin-boned
• 2 teaspoons rapeseed oil
• 24 cherry tomatoes on the vine
• 4 thick slices of fresh bread, preferably wholemeal
• 200g rocket leaves
• 1 teaspoon rapeseed oil
• 1 red onion, finely chopped
• 2 cloves garlic, finely chopped
• 1 teaspoon cumin seeds
• ½ red chilli, deseeded and chopped
• Pinch of saffron strands (optional)
• 1 lemon, zest only, finely grated
• 500g ripe tomatoes, skinned and chopped
• 30g brown sugar
• 75ml red wine vinegar