โญ Cornstarch (Best Fat-Free Option)
Use 1 tablespoon cornstarch per 1 tablespoon arrowroot powderCornstarch is a starch extracted from corn and is widely used as a thickening agent. It gelatinizes at a slightly higher temperature than arrowroot, forming a clear, glossy gel that is ideal for cream sauces. Its neutral flavor ensures the sauce's taste remains unaltered.
To use cornstarch effectively, mix it with a cold liquid to create a slurry before adding it to the hot cream sauce. Avoid boiling the sauce for extended periods after adding cornstarch, as prolonged heat can break down the starch and thin the sauce.
Compared to arrowroot, cornstarch produces a similarly smooth and shiny sauce but can lose thickening power if overheated. The texture is slightly less delicate but still well-suited for cream sauces.