โญ Brown Rice Syrup (Best Vegan Option)
1:1 (1 tablespoon brown rice syrup per 1 tablespoon maple syrup)Brown rice syrup is a good substitute because it has a similar thick consistency and moisture content, helping to preserve the mousse's creamy texture. Its mild sweetness allows the chocolate flavor to remain dominant without overpowering.
Since it is less sweet than maple syrup, you may want to slightly increase the quantity or add a small amount of sugar to compensate. Stir thoroughly to ensure even distribution and smooth texture.
The final mousse will be a bit less sweet and may have a subtle grainy texture if not fully dissolved, but overall it maintains the desired mouthfeel and moisture balance.