Coconut Sugar (Best Option)
1:1 by volumeCoconut sugar is granulated and has a similar particle size to granulated sugar, allowing it to dissolve and incorporate into cookie dough similarly. It contains trace minerals and has a lower glycemic index but behaves similarly in Maillard browning and moisture retention.
When substituting, use the same volume as granulated sugar. Because it has a slightly coarser texture, ensure it is well mixed to avoid graininess. Expect a slightly darker cookie color and a subtle caramel note.
The final cookie will have a comparable chewiness and spread, with a nuanced flavor difference that complements chocolate well.