Caster Sugar (Best Option)
1:1Caster sugar is essentially granulated sugar with finer crystals, which allows it to dissolve rapidly in liquid batters like crepes. This ensures an even sweetness without graininess or gritty texture.
When using caster sugar, ensure it is well incorporated by mixing thoroughly but gently to avoid overworking the batter. It behaves almost identically to granulated sugar in cooking.
The final crepes will maintain the expected delicate texture and subtle sweetness, closely matching those made with granulated sugar.