Definition of caster sugar in English:

caster sugar

Line breaks: cast¦er sugar
(also castor sugar)


[mass noun] British
  • Finely granulated white or pale golden sugar.
    More example sentences
    • In a bowl mix 200g medium desiccated coconut, 50g golden caster sugar and 1 egg white.
    • When the colour is exactly right, I will stir in exactly one rounded teaspoonful of golden caster sugar.
    • Put the cream cheese, mascarpone, caster sugar, eggs and the extra yolk in the basin of a food mixer (you will need the beater attachment).


mid 19th century: so named because it was suitable for use in a castor (see castor1 ( sense 2)).

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Pronunciation: skəʊʃ
a small amount; a little