If you're in a hurry to use powdered sugar, you can make powdered sugar directly at home with white granulated sugar, which is convenient and fast. But it's best not to use white granulated sugar directly instead of powdered sugar, as this will make the stuff you make have little dark particles on top, and it will also be easier to crumble, and all you need to make powdered sugar at home is a food processor.
If you think it is very expensive to buy powdered sugar in the supermarket, or if you are in a hurry to use powdered sugar at home, you may wish to make your own powdered sugar, the method of making powdered sugar is very simple, only need to prepare sugar and corn starch can be, if you are in a hurry to use it directly, you can not put the corn starch.
With white granulated sugar you can make powdered sugar, but white granulated sugar is not a substitute for powdered sugar, because the granules of white granulated sugar are relatively large, and the production will have some reaction with the butter, so that the cookies or snacks made with black spots on the top and easy to crumble, which affects the taste and aesthetics.
Put the sugar into the cooking machine and grind it, if you want the powdered sugar to be more delicate, you can grind it several times, and finally you can get very fine powdered sugar.
Powdered sugar is called Icing Sugar in English, and is a white powdered sugar with very fine particles and a starch mixture (usually cornstarch) of about 3 to 10%, which is moisture-proof and prevents the sugar particles from tangling. There is not much difference in the composition of powdered sugar and white sugar, just a slight difference in physical shape.
Powdered sugar is generally used to make cookies or cakes, but more often it is used to decorate pastries, and can also be used to make frosting or cream fillings.