Caster Sugar (Best Option)
1:1Caster sugar has finer crystals than granulated sugar, which allows it to dissolve quickly and evenly in liquids like cream sauces. This prevents any gritty texture and helps maintain a smooth consistency.
When using caster sugar, ensure it is fully dissolved by stirring gently and heating moderately. Avoid adding it too early if the sauce requires thickening agents that might react differently with sugar.
The final sauce will have a sweetness level and texture nearly identical to using granulated sugar, but with improved smoothness and mouthfeel.