⭐ Vanilla Extract (Best Gluten-Free Option)
Use equal amount (1 teaspoon almond extract = 1 teaspoon vanilla extract)Vanilla extract shares a similar aromatic profile with almond extract, both containing benzaldehyde derivatives that provide sweet, nutty notes. In quiche, where subtlety is key, vanilla enhances the custard without overpowering the savory ingredients.
When substituting, use the same amount to avoid altering the moisture balance. Be sure to use pure vanilla extract rather than imitation for best flavor.
The final quiche will have a slightly different but equally pleasant aroma, with less pronounced nutty notes but a smooth, comforting sweetness that complements the dish well.