Preheat oven to 220°C (200°C fan-forced). Heat a large heavy frying pan over medium-high heat. Add 2 tbs of the oil and half the chorizo. Cook, stirring, for 3 mins or until crisp. Using a slotted spoon, transfer the chorizo to a 23cm x 33cm baking dish. Season the chicken well with salt and pepper. Add half the chicken to the frying pan and cook, turning once, for 6 mins or until golden brown all over. Transfer to the baking dish. Repeat with the remaining chicken.