Crispy skin salmon with cabbage and gherkin dressing

Ingredients

• Crispy skin salmon with cabbage salad
• 1 tablespoon olive oil
• 4 x 125g salmon fillets, skin on
• 1/4 small green cabbage, shredded
• 1 small fennel, thinly sliced on a mandolin
• 1 red onion, thinly sliced
• 1 green apple, cored, cut into matchsticks
• 1/2 cup dill
• 1/2 cup mint leaves
• 1 avocado, peeled, cut into wedges
• lemon wedges to serve
• Gherkin dressing
• 250 grams light sour cream
• 2 tablespoons lemon juice
• 2 tablespoons baby capers
• 4 gherkins, finely chopped