Method
Oil at the same temperature is gentler than water, which keeps the fish silky and tender.
- Pour the olive oil into a skillet and set the halved onion in it to take up space, so less oil is needed to cover the fish.
- Warm the oil to 180 degrees Fahrenheit.
- Lay the cod in the oil, cover the skillet, and bake in a 250 degree oven for about 30 minutes, until the fish flakes easily.
- Lift the fish out and plate it.
- Blend the leftover cooking oil with tomatoes and shallots into a smooth orange sauce and spoon it over the fish.
- Finish with herbs and cherry tomatoes.