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Glite Dictionary
caster sugar

caster sugar

3.4
A very fine sugar for baking and to sweeten drinks
  • noun
  • /ˈkɑːstə ˈʃʊɡə/
  • UK
translation icon : azúcar glas
  • I've also got some plain flour and some caster sugar as well.

Examples

  • I add the whites after beating them until stiff with caster sugar.

  • "They switched my bag of caster sugar for a kilo of coke."

    Rollin' with the Nines (2006)

  • We have caster sugar which is produced in the United Kingdom and the chocolate which again is selected in Yorkshire.

  • Slowly add the caster sugar and beat until smooth and shiny.

  • Sprinkle with caster sugar and serve with custard or ice cream.

Synonyms

castor sugar
vscaster sugar
  • UK
3.4

A very fine sugar bakers use for baking and sprinkling

is the modern spelling variant of the same finely granulated sugar

How Fine

icing sugar
  • UK
1 1.6
caster sugar
  • UK
3.4

Surface Forms

caster sugar singular
caster sugars plural

Morphology

caster + sugar

If a learner knows 'caster' as the perforated shaker for dusting and 'sugar' as the sweet crystalline ingredient, they can infer 'caster sugar' is sugar intended for use in a caster — i.e., very fine granules. The compound follows a straightforward noun+noun compositional pattern (sugar for a caster), so its meaning is directly derivable from the parts.

Etymology

Caster sugar gets its name from a small shaker called a caster. The sugar is ground very fine so it can be 'sprinkled' or 'shaken' through a caster, so the name now means the fine sugar used in baking.