I had to include this. My boss is Portuguese.
In the large pot, heat the oil, add the onion, and cook until soft and beginning to brown, about 6 minutes. Add the garlic and the chorizo and cook for another 2 minutes. Stir in the wine. Season with salt and pepper.
Add the mussels and cook with the lid on until all the mussels are open, 8 to 10 minutes. Shake. Add the cilantro and parsley. (If you want, boost with a knob of softened