Learn how to make powdered sugar from granulated sugar and cornstarch! Its also known as  as confectioner’s sugar, and it makes wonderful cookie frosting!  

A sprinkle of powdered sugar compliment these cream cheese lemon curd cookies.

Measuring cup of powdered sugar.

Maybe you don’t use powdered sugar often and don’t want o give up pantry space you can just make what you need.  And the best part is it only requires two simple ingredient and a food processor and you have it ready in about 1 minute.

HOW TO DIRECTIONS

To make powdered sugar at home, you’ll need two ingredients: granulated sugar and cornstarch. Use 1 tablespoon cornstarch for every cup of sugar.

You can make as little or as much as needed., add 1 tablespoon of cornstarch to each cup of granulated sugar used.  Also this will double, so if only need one cup of powdered sugar, then use ½ cup of granulated sugar.  Adjust the cornstarch in half also. 

Add the granulated sugar and cornstarch to a food processor, and blend for 30 seconds, until the sugar is white and fluffy. If you want a much smaller amount, you can use a spice grinder.

Why Do You Need Cornstarch to Make Powdered Sugar?

Cornstarch is added to to prevent clumping. When sugar is ground into a fine powder, it tends to absorb moisture from the air, which can cause it to clump together. The cornstarch acts as an anti-caking agent, keeping the sugar light and fluffy.

Powdered sugar in spice grinder.

How To Store

If you are not using right away, store in an airtight container.  I like to use old mason jars.

What to know more about baking small batch cookies? Check out the posts about using leavening agents in cookies , different types of flour, and stocking your bakers pantry.

Check out the rest of the Cookie Series:

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