1 carrot, peeled and thinly sliced
2 sticks celery, thinly sliced
1 bunch dill, chopped
1 baby fennel, thinly sliced
1 lemon, juice only
1 red onion, sliced into rings
1 tsp Dijon mustard
4–5 black peppercorns
200g/7oz caster sugar
1 tsp fennel seeds
50–75ml/2–2½fl oz olive oil
6²µ/β…›o³ϊ salt
1 star anise
100ml/3Β½fl oz white vinegar
25ml/1fl oz white vinegar
4 crispbreads
2 x 200g/7oz cod fillets
3 herring fillets, pin-boned
200g/7oz mussels