Ask the Test Kitchen
I’d like to make my own cake flour. What is the ratio of cornstarch to flour? —J.M.Wyalusing, PennsylvaniaFor each cup of cake flour, use 1 cup minus 2 tablespoons bleached all-cause flour plus 2 tablespoons cornstarch. Keep in mind that cake flour has properties one of a kind from all-reason flour, so the result may not be the same.
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