finely ground or powdered sugar.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use castor sugar in a sentence
Continue stirring for five minutes, and sweeten with two ounces of castor sugar.Nelson's Home Comforts | Mary Hooper
He came to the table and picked up the basin filled with castor sugar, making first as if to put some in her cup.Fantmas | Pierre Souvestre
Then stir in, gradually, the castor sugar and ground rice, and add the lemon rind.The Skilful Cook | Mary Harrison
If this paste is used for tarts, add one dessertspoonful of castor sugar to the flour.The Skilful Cook | Mary Harrison
Set it in the oven for about 10 minutes, and serve immediately with a little castor sugar sifted over it.The Allinson Vegetarian Cookery Book | Thomas R. Allinson