⭐ Carbonated Water (Best Vegan Option)
1/4 cup per 1 cup of liquid mixture Quick tip: Introduces mild aeration and lightness; minimal flavor impact but less stable than other options.
Carbonated water contains dissolved carbon dioxide which can provide temporary aeration when mixed into the tiramisu base. This can lighten the texture slightly without fermentation.
Use chilled carbonated water and gently fold it into the mixture just before assembling to retain bubbles. Avoid overmixing as carbonation dissipates quickly.
While it does not replicate yeast’s leavening, it can improve lightness in the absence of other agents but may result in a less stable texture over time.