How to Make Powdered Sugar: 10 Steps (with Pictures) wikiHow
Mar 29, 2019· To make powdered sugar, start by measuring out 1 1/2 cups of sugar into your blender and adding 1 1/2 teaspoons of cornstarch. Next, blend the mixture for between 13 minutes or until the sugar has been blended into a powder. Finally, let the powdered sugar settle in the blender before sifting it through a fine sieve.