You need to add cold water to your corn starch to make a slurry, which will help eliminate lumps. The starch coats the proteins and fats in the melted cheese, keeping the proteins from clumping and the fats from separating out. Flour or cornstarch is like insurance against clumping and stringiness in a cheese sauce. 11 Can I use grated Parmesan instead of shredded for Alfredo sauce?ĭo add starch.
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