Cook Fettuccine (500 gram) as per packet instructions. Set aside one cup of pasta water for later. Drain the pasta and set aside while working on the rest of the meal.
Over medium heat, add a little bit of olive oil to a large frying pan. Add in Chicken Breast (500 gram), cut into chunks. Cook until brown and cooked all the way through. Set aside.
Add in Leek (1), only using the pale section towards the bottom. Cook for about 5 minutes, or until the leek is softened.
Return the chicken to the pan. Add in Cream (1 1/2 cup) and the pasta water that had been set aside. Season with Salt and Pepper (to taste). Gently stir and bring to a boil.
Once boiling, reduce the temperature to low. Add in Parmesan Cheese (1/2 cup) and Broccolini (1 bunch). Gently stir for a few minutes until broccolini is tender.
Stir the chicken mixture through the pasta. Plate and sprinkle with extra parmesan and Fresh Parsley (1/4 cup).