The best replacement for icing sugar is powdered sugar.

The best alternatives to icing sugar are rated as following:
★★★★★  powdered sugar
★★★  caster sugar
★★★  confectioners sugar
★★★  icing mixture
★  granulated sugar
  royal icing
  confectioners
  superfine
  castor sugar
  fruit sugar
  superfine sugar
  powder sugar
  confectioner sugar
  sugar powder

Your alternative for icing sugar is not listed? Suggest!
Speaking about icing sugar, one probably shouldn't forget about butter recipe.

Other search terms related to icing sugar and their ratings are:
★★★★★ butter recipe
★★★★★ caster sugar
★★★★ icing sugar
★★★★ icing
★★★★ icing sugar recipe
★★ melted chocolate
★ lemon
★ butter icing
You have in mind a companion for icing sugar and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of icing sugar in all years. Click on graph for more.
icing sugar
powdered sugar
caster sugar