To make frosting, royal icing, and macarons, there is one essential ingredient, confectioners’ sugar (= icing sugar). So here goes how to make icing sugar at home.
* Confectioners’ sugar = icing sugar = powdered sugar; table sugar = granulated sugar
- 1 cup granulated sugar
- 1 tablespoon cornstarch
- 1. First in a blender add granulated sugar and cornstarch. Cornstarch is added to prevent clumping. You can use a coffee grinder or any blender such as a small smoothie blender, or a bigger aluminum blender.
- 2. Turn the blender on and blend until the mixture is powdery. It takes only a few minutes.
- 3. Store the homemade confectioners' sugar in an airtight container.
A blender is better to make icing sugar than a food processor. In contrary, you can use both a food processor and a blender to make caster sugar because caster sugar is not as fine as icing sugar.