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How to Make Powdered Sugar

4.58 from 459 votes
I'll show you how to make powdered sugar, aka confectioner's sugar, so you'll never run out when making any of my baking recipes!
How to Make Powdered Sugar - 2 ingredients and just 1 blender and you have instant Homemade Powdered Sugar

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Hi Bold Bakers!

Did you know that powdered sugar, also known as confectioner’s sugar or icing sugar, is just blended sugar? It’s true and it’s that easy. You know those times when you want to make buttercream frosting and halfway through you realize you have no powdered sugar? Well, worry no more because my recipe for How to Make Powdered Sugar is coming to the rescue.

How to Make Powdered Sugar

  • First, you need a small powerful blender, like a spice grinder, nutri bullet, vitamix or food processor. I had the best success in a blender. You might have to try a few different appliances to see what works best.
  • Then add in the granulated sugar and cornflour (cornstarch). The cornstarch is important as it keeps the sugar dry.
  • Next, blend it all together until fine, around 4-5 minutes. Stop, and stir with a spatula to make sure to mix it around so that it is all getting blended.  
  • After a few minutes run it through your fingers and if it feels gritty then keep blending. You might still feel a little texture at the end but that’s ok. If you can’t seem to get it really fine you might need to try a smaller, stronger blender.
  • Store your Homemade Powdered sugar in an airtight container and it will keep indefinitely. 

Uses for Powdered Sugar

You can use your homemade powdered sugar in or with so many recipes including my:

How to Make Powdered Sugar,homemade powdered sugar, How to Make Powdered icing Sugar, How to Make confectioners Sugar, DIY Powdered Sugar, DIY icing Sugar, DIY confectioners Sugar, Baking basics, how to recipes,

Watch The Recipe Video!

How to Make Powdered Sugar

4.58 from 459 votes
I'll show you how to make powdered sugar, aka confectioner's sugar, so you'll never run out when making any of my baking recipes!
Author: Gemma Stafford
Servings: 2 cups
Prep Time 5 mins
Total Time 5 mins
I'll show you how to make powdered sugar, aka confectioner's sugar, so you'll never run out when making any of my baking recipes!
Author: Gemma Stafford
Servings: 2 cups

Ingredients

  • 2 cups (16oz/450g) white sugar
  • 2 tablespoon cornflour (cornstarch)

Instructions

  • First, you need a small powerful blender, like a spice grinder, nutri bullet, vitamix or food processor. I had the best success in a blender. You might have to try a few different appliances to see what works best.
  • Add in the sugar and cornflour/cornstarch. The cornflour is important as it keeps the sugar dry.
  • Blend it all together until fine, around 4-5 minutes. Stop, and stir with a spatula to make sure it gets mixed all around so that it is all getting blended.
  • After a few minutes run it through your fingers and if it feels gritty then keep blending. You might still feel a little texture at the end but that’s ok. If you can’t seem to get it really fine you might need to try a smaller, stronger blender.
  • Store your Homemade Powdered sugar in an airtight container and it will keep indefinitely.
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Cari Sue
Cari Sue
2 years ago

Now searching for “how to make cornstarch”…. never fully prepared!

Sharmaigne
Sharmaigne
2 years ago

Dear Google, thank you for sending me here 🙂 and thank you Gemma for posting this.
Perfect! Took me but 2 minutes in my regular blender and now I’m making some cream cheese frosting for my quarantine cinnamon rolls. No way in hell I’m going to the grocery store for powdered sugar.

Leanne Long
Leanne Long
2 years ago

The only time you really need to use cornstarch is IF you are making enough powdered sugar to store it. If you are making just enough for the recipe you are currently making, you do not need the cornstarch.

Alexis
Alexis
2 years ago

I used a coffee grinder and it worked great! First I tried it with my blender and it didn’t do anything at all but the coffee grinder only took about 30 seconds

Rae Marie Aaland
Rae Marie Aaland
2 years ago

We just had to try this. Unfortunately, we did not have any cornstarch on hand. We decided to try just 1 cup of sugar in the “Bullet.” It definitely put a tug on the motor so we dumped it all out and used batches of 1/3 cup sugar. I was concerned that if we worked the Bullet too hard, it would generate too much heat and we’d either end up with cotton candy or just a mess! Well, it worked great. I plan to use it in whipping cream today and vacuum seal the remaining sugar. Since there’s no starch,… Read more »

sistaramey
sistaramey
2 years ago

Wow! Who Knew? This is awesome, thank you!!

Kain
Kain
2 years ago

Is it possible to replace the cornstarch in this with flour (like all-purpose)?

Patricia Dyess
Patricia Dyess
2 years ago

Can I use granulated Swerve & Arrow root powder to make Powder sugar? For my Keto Dite.

Lilly
Lilly
2 years ago

Can you half this recipe

Khal
1 year ago

This is a great recipe thanks for sharing Jemma

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About Us

Meet Gemma

About Us

Meet Gemma

Hi Bold Bakers! I’m Gemma Stafford, a professional chef originally from Ireland, and I want to help you bake with confidence anytime, anywhere!

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