Step 1

Set the oven for 440°F (225°C).

Step 2

Place two sheets of aluminium foil on top of each other, positioned at 90 degrees to each other. Create another setup just like it next to it.

Step 3

Add the butter in pieces to the two packets, followed by slices of potato, tomato and lemon.

Step 4

Top with cod filets and squeeze over the lemon juice. Season with sea salt flakes and fresh ground black pepper. Top with basil leaves.

Step 5

Fold the ends of the aluminium foil over the fish to create a well-sealed package.

Step 6

Place the foil packets on a sheet pan or in another type of oven safe dish and cook in the middle of the oven for 25 min. After 25 min, take them out and let sit for 5 min. Serve in the packet!