Best caster sugar substitute for muffins?
Granulated Sugar, used at 1:1 by weight. Works in almost everything. For meringues and delicate sponges, blitz granulated in a blender for 10-15 seconds first to approximate the finer crystal.
Best Caster Sugar Substitutes for Muffins & Quick Breads
Use forgiving substitutions that still maintain moisture and lift in quick batters. Quick breads tolerate swaps better, but leavening and hydration still need balance to avoid gummy centers.
Can I make muffins or quick bread without caster sugar?
Yes. Start with Granulated Sugar at 1:1 by weight, then adjust liquid or bake time in small steps after a test batch.
Top Recommendation
Granulated Sugar
Use 1:1 by weight
Works in almost everything. For meringues and delicate sponges, blitz granulated in a blender for 10-15 seconds first to approximate the finer crystal.
View full adjustment notes →How much does 1 cup of caster sugar weigh?
On CupOrGram, 1 cup of caster sugar is treated as 190 grams. Use the conversion page if you want the original ingredient weight before choosing a substitute.
Caster Sugar cups to grams →