Cooking Substitutions, Recalculated
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What can I use instead of powdered sugar?

Best substitute for 1 cup powdered sugar
1 cup white sugar + 1 tbsp cornstarch
White sugar + cornstarch — Blend in a processor until fine.
cups
Amounts below are for 1 cup powdered sugar

2 substitutes for powdered sugar

SubstituteUse this muchNotes
White sugar + cornstarch1 cup white sugar + 1 tbsp cornstarchBlend in a processor until fine.
Granulated sugar (blended)1 cup granulated sugarGrind fine; won't dissolve like store-bought.

Powdered sugar is finely ground sugar with a little starch. You can blend your own in a pinch.

Tips

  • Blend 1 cup sugar with 1 tbsp cornstarch into a powder.
  • Homemade won't be as silky - fine for frosting, less so for delicate dusting.

FAQ

How do I make powdered sugar?
Blend 1 cup granulated sugar with 1 tbsp cornstarch until fine and fluffy.
Can I use granulated sugar instead?
In batters yes; for frosting, blend it first or it stays gritty.