Smoked Mackerel Pâté with Pickled Beetroot

For the pâté (Makes 250g)

1 whole smoked mackerel or 2 smoked mackerel fillets

100g mayonnaise

60g crème fraîche

1 lemon zest and juice

2 tbsp parsley, chopped

1 tbsp dill chopped

½ tsp freshly ground black pepper

½ tsp sea salt

For the pickled beetroot

750g beetroot (or 3 large beetroots)

400ml apple cider vinegar

350g caster sugar

400ml water

1 tsp coriander seeds

1 tsp black peppercorns

1 pinch fine sea salt