Cod with herb pesto and potato candied in oil

Ingredients

• 4 potatoes
• 300 ml olive oil
• 500 gr fresh cod (or desalt)
• 1 green pointed pepper (italian pepper)
• 1 red pointed pepper (italian pepper)
• ½ red onion
• 20 vine tomatoes
• salt and pepper
• 1 tbl spoon olive oil
• few capers and spring onion (to finish)
• 1 handful basil leaves
• 1 handful coriander
• 1 tbl spoon chives (chopped)
• 3 tbl spoon pine nuts
• 4 tbl spoon olive oil