Step 1

Heat oven to 220C/200C fan/gas Cut the chorizo into slices the thickness of a pound coin. Put the onion and garlic in the bottom of a large roasting tin. Scatter over the chorizo, then add the chicken pieces, potato, rosemary and a couple of grinds of black pepper. Drizzle with olive oil, then bake for 45 mins.

Step 2

Halfway through the cooking time, give everything a good baste in the chorizo juices.