First, do not use cornstarch slurry. I know, it’s a thickener for soup, but Alfredo isn’t soup. It’ll make your sauce weirdly gelatinous. Yuck.
Free Keto Alfredo Sauce Recipe [Sugar-Free] - i Keto Mom [Best and Easy
Second, never add cold liquid to hot sauce. It can shock the fat and cause separation. Always use room-temp milk or warm pasta water. Think of it like introducing two friends—you don’t want a dramatic first meeting.
Third, don’t panic and add a whole stick of butter. Yes, it’s tempting, but your arteries will write you a very angry letter. Moderation is your friend.