⭐ All-Purpose Flour with Cornstarch (Best Fat-Free Option)
For every 1 cup cake flour, use 1 cup all-purpose flour minus 2 tablespoons, then add 2 tablespoons cornstarchCake flour has a lower protein content (7-9%) compared to all-purpose flour (10-12%), which results in a softer, more tender texture. By removing 2 tablespoons of all-purpose flour and replacing it with cornstarch, which contains no gluten, the overall protein content is lowered, mimicking cake flour’s characteristics. This is important in Pad Thai to maintain a delicate batter that crisps lightly without becoming tough or rubbery.
When mixing, sift the all-purpose flour and cornstarch together to ensure even distribution. Avoid overmixing the batter to prevent gluten development, which can toughen the texture. This substitute works best when used immediately and not stored for long periods.
Compared to using pure all-purpose flour, this substitute yields a lighter, more tender coating or batter in Pad Thai, preserving the dish’s characteristic balance of textures without compromising the crispness or chewiness.