Honey (Best Option)
3/4 teaspoon per 1 teaspoon agaveHoney works well because it has a similar sugar composition and viscosity to agave nectar, allowing it to dissolve evenly in the custard mixture and contribute to smooth texture. The natural fructose and glucose content ensures proper sweetness and caramelization.
When substituting, slightly reduce the amount due to honey's higher sweetness. Use mild-flavored honey to avoid overpowering the vanilla. Warm honey slightly if too thick to mix evenly.
The final Crème Brûlée will have a subtly richer flavor with a slightly deeper caramelized crust, but overall the custard texture and sweetness remain very close to the original recipe.