This recipe creates a classic, rich Alfredo sauce in minutes using just a few key ingredients: butter, heavy cream, Parmesan cheese, and seasoning. It's a quick and easy method for a decadent sauce that pairs perfectly with pasta, emphasizing simplicity and speed for a luxurious outcome.
For an authentic, silky Alfredo, always use freshly grated Parmesan from a block; pre-shredded varieties often contain anti-caking agents that hinder smooth melting. Maintain a low to medium-low heat when warming the butter and cream to prevent scorching and ensure the cheese melts slowly into a homogenous emulsion, rather than clumping. Season gradually, tasting as you go, as Parmesan adds considerable saltiness. The pasta cooking water is crucial: its starch content helps emulsify the sauce, creating a richer texture and allowing you to achieve the perfect consistency without diluting the flavor. Serve immediately as Alfredo thickens quickly upon cooling. A tiny pinch of nutmeg can subtly enhance the creaminess.