This Basque dish is earthy with a sweet and sour tomato and pepper sauce that goes well with the sweet and mild cod. The sauce can be made up to two days ahead and rewarmed before serving. This recipe is adapted from Avec Eric.
Prepare the sauce: heat a large pan over medium high and when warm, add the olive oil and onion. Cook until soft and translucent, about 5 minutes. Then add the peppers and pancetta, cooking until pancetta has rendered it’s fat and the peppers are soft. Add tomatoes and thyme and simmer for 10 minutes on low heat. Add the wine or balsamic and cook for another 5-10 minutes, until the wine reduces by half. Remove from heat and add the parsley. Season to taste with salt and pepper and set aside.
In the now empty pan, heat the two tablespoons of avocado oil until hot. Season the fish generously with salt and pepper and lay it into the oil. Immediately reduce the heat to medium and add the garlic and thyme. Cook, without moving until the fish is browned on the first side, about 6-8 minutes. Flip the fish over and cook another 2-3 minutes, or until cooked through. Serve atop the sauce.
Notes
Cooking with wine removes almost all of the alcohol and a little bit can add a lot of complex flavor. But if you prefer, feel free to use a bit of balsamic vinegar instead.