In a large 12-inch skillet (that has a lid), combine chicken stock, garlic cloves, salt, and pepper. Add the pasta to the pan, breaking in half to fit IF needed.
Place the pan over medium-high heat and bring to a gentle boil, stirring pasta every 30 seconds or so to prevent the noodles from sticking together.
Once the mixture begins to bubble around the edges, reduce the heat to medium-low. Stir in the milk and 1 tablespoon of butter.
Cover the pan and simmer for 6-7 minutes, or until the pasta is tender. You will want to remove the lid to stir the pasta every 45-60 seconds or so. If the liquid begins to evaporate before the pasta is fully cooked, add an additional tablespoon of milk, one tablespoon at a time, as needed.
Once the noodles are tender, remove the pan from the heat, and an additional tablespoon of butter and the parmesan cheese. Toss to coat and serve immediately.
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Notes
Nutmeg: Freshly grated nutmeg is best for Alfredo sauce, as it deepens the sauce. Pre-grated nutmeg is NOT the same. If that is all you have on hand, it is best to simply omit the nutmeg from the sauce.Milk: This recipe works with whole milk, 2% milk, and skim milk. Half and half or heavy cream can be used for a more decadent result. Storage: This alfredo is best served fresh. If you happen to have leftovers, store in the refrigerator for up to 3 days. And to reheat add a bit more stock to thin it out, as the pasta may dry out as it sits.