Honey (Best Option)
1:1 by volume (1 tablespoon honey per 1 tablespoon granulated sugar)Honey works well as a sugar substitute in marinades because it contains natural sugars (fructose and glucose) that dissolve easily and provide sweetness. Additionally, honey's hygroscopic nature helps retain moisture in the marinade, improving flavor absorption and tenderness in proteins.
When using honey, ensure it is well mixed into the marinade to prevent clumping. Because honey is more viscous, slightly warming it or whisking thoroughly helps achieve even distribution. Also, reduce other liquids slightly if the marinade consistency is too thin.
Compared to granulated sugar, honey imparts a subtle floral or fruity note and a richer mouthfeel, which can enhance the complexity of the marinade without overpowering the other ingredients.