Heat oven to 200C/180C fan/gas 6 and heat the oil in a large frying pan. Add the potatoes and fry for 10 mins until they begin to crisp. Transfer to a baking tray and bake in the oven while you cook the haddock.
Put the haddock, broccoli and cream in the frying pan you used for the potatoes and bring to a simmer. Cover with a lid and cook for 8-10 mins, basting the haddock every now and again until it is cooked and the broccoli is tender. Serve with the chips.