AFAIK, confectioner's sugar is powdered, and has corn starch to prevent clumping. "Superfine" is regular sugar ground more finely. I'm pretty sure you can't replace one with the other. They're unlikely to pack the same. (i.e., one cup of one sugar probably weighs more than one cup of the other sugar.)
I've been told, but haven't confirmed, grinding regular sugar in your food processor will make an acceptable substitute for superfine. (I don't have a food processor. I also don't really do the sort of the desserts that need either superfine or confectioner's sugar.)
>> AFAIK, confectioner's sugar is powdered, and has corn starch to prevent clumping. "Superfine" is regular sugar ground more finely. I'm pretty sure you can't replace one with the other.
+1. Confectioner's sugar isn't only a different fineness; it contains cornstarch. Superfine sugar usually only contains sugar.
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I've been told, but haven't confirmed, grinding regular sugar in your food processor will make an acceptable substitute for superfine. (I don't have a food processor. I also don't really do the sort of the desserts that need either superfine or confectioner's sugar.)
Never tried replacing a toilet seat.
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+1. Confectioner's sugar isn't only a different fineness; it contains cornstarch. Superfine sugar usually only contains sugar.