Salmon Salad with Peas and Dill

Ingredients

• 400 g salmon fillet
• 1 lemon
• 200 ml fish stock (broth)
• 125 ml dry white wine
• salt and freshly ground black pepper
• 200 g frozen peas
• 150 ml salt-reduced vegetable stock (broth)
• 1 small head iceberg lettuce
• 125 g light mayonnaise
• 125 g sour cream
• 1 tsp medium to hot mustard
• pinch sugar
• 2 tbsp fresh dill (finely chopped)
• 4 sprigs dill (for garnish)