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Recipes » Recipes II Claire K Creations » Tips, tricks & tools » From scratch essentials

How to make icing sugar

Published: Mar 24, 2023 · Modified: May 7, 2025 by Claire · This post may contain affiliate links · Leave a Comment

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Learn how to make icing sugar (or confectioner's sugar) from scratch at home with just 2 ingredients in your food processor (in 60 seconds).

How to make icing sugar (how to make confectioner's sugar)
Jump to:
  • What is icing sugar?
  • Ingredients
  • Instructions
  • Recipe

Do you need icing sugar for a recipe but just realised you don't have any?

Have you got a blender, food processor or Thermomix and some kind of sugar?

You're all set because you're about to learn how to make confectioner's sugar from scratch in just 60 seconds.

What is icing sugar?

It is finely powdered sugar that's used in baking.

Confectioner's or powdered sugar are other names for icing sugar.

How to make confectioner's sugar from scratch

Ingredients

To make your own confectioner's sugar you will need:

  • Sugar - to make icing sugar you can use caster, regular, raw or even rapadura (it won't be white) sugar.
  • Blender - a food processor, high-powered blender or Thermomix will all do the job.
  • Corn flour - this one is optional but will help keep the sugar super fine if you're going to store it for any period of time. Leave it out if you're using it straight away.
How to make confectioner's sugar from scratch - what is icing sugar

Instructions

  1. Measure out one cup of sugar into the bowl of a food processor, Thermomix or jug of a blender.
  2. If using, add 1 tablespoon of corn flour.
  3. Blend for 30-60 seconds or until powdered - it will be super smooth when you rub it between your fingers.
  4. Use in your recipe or store in an airtight container.
How to make powdered sugar from scratch in 60 seconds

Uses

  • The buttercream icing that tops vanilla cupcakes.
  • Chocolate icing atop the simple, kid-friendly chocolate cake (a great recipe for kids to bake themselves).
  • Royal icing on the best ever gingerbread biscuits.
  • As a dusting on top of the best ever brownies.

Recipe

How to make icing sugar

How to make icing sugar

Learn how to make icing sugar (or confectioner's sugar) from scratch at home with just 2 ingredients in your food processor (in 60 seconds).
Print Pin Rate SaveSaved!
Course: DIY
Cuisine: Snacks and sweets
Keyword: sugar
Prep Time: 1 minute minute
Total Time: 1 minute minute
Servings: 1 cup
Calories: 796kcal
Author: Claire Cameron - Claire K Creations

Ingredients

  • 1 cup sugar
  • 1 tablespoon corn flour

Instructions

  • Place the ingredients in a blender, food processor or Thermomix and blend on high speed for 30-60 seconds or until it forms a fine powder.
  • Use straight away or store in an air-tight container.

Notes

Corn flour can be excluded if the icing sugar is being used right away.

Nutrition

Calories: 796kcal | Carbohydrates: 205g | Protein: 1g | Fat: 1g | Saturated Fat: 0.04g | Polyunsaturated Fat: 0.1g | Monounsaturated Fat: 0.1g | Sodium: 2mg | Potassium: 22mg | Fiber: 0.5g | Sugar: 200g | Vitamin A: 0.3IU | Calcium: 12mg | Iron: 0.2mg
Have you made this recipe? I'd love to hear what you think. Tag me on Instagram @clairekcreations

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