Crumbed Sardines with Rhubarb Ketchup

For the sardines

2 x 80g sardines tinned

75g panko breadcrumbs

1 lemon, zested

1 garlic clove, minced

2 sprigs parsley, chopped

1 tbsp olive oil

¼ tsp freshly cracked black pepper

Pinch sea salt flakes

For the rhubarb ketchup

1 bunch rhubarb, chopped (450g)

50g caster sugar

150ml apple cider vinegar

200ml water

1 star anise

Pinch freshly grated nutmeg