Now, back to that skillet! In the same pan you cooked the chicken in (don’t worry, the flavor from the chicken will make the noodles even better), melt the butter over low heat. Add your cooked noodles to the pan and toss them around until they’re fully coated in that rich, buttery goodness. If they’re looking a bit dry, pour in a little of that reserved pasta water to help loosen them up and make everything come together beautifully. If you like, you can also add a bit of Parmesan cheese at this point for some creamy, cheesy flavor.