- Preheat the oven to 200 degrees Celsius.
- Wash the potatoes and cut into wedges. Place in an oven-proof dish and mix with the olive oil, thyme, basil, salt and pepper.
- Roast the potatoes in the oven for around 30 minutes until they are soft in the middle and golden.
- Once the potatoes have been in the oven for 10 minutes, remove the plastic top from the aluminium tray and place the panko-crusted cod fillets in the oven. Leave to bake for around 18 minutes.
- While the fish and potatoes are in the oven, mix the mustard, mayonnaise, crushed garlic cloves, egg yolks and lemon juice to make the aioli. Season with salt and pepper.
- Serve the crispy cod fillet with the warm potato wedges and aioli.