Salmon ceviche

Serves 6

750g Norwegian salmon, skin removed
Juice of 2 lemons
½ tsp salt
2 tsp caster sugar
3 tbsp chopped dill
Black pepper
60g large salmon roe

FOR THE AVOCADO SALAD
2 avocados, peeled, cut into 8 pieces
4 spring onions, chopped
400g baby Rosa tomatoes
1 red chilli, chopped
10g coriander leaves
2 heads butter lettuce, leaves washed and separated
Olive oil and juice of 1 large lemon