⭐ Lemon Juice (Best Nut-Free Option)
1 teaspoon lemon juice per 1 teaspoon white vinegarLemon juice is acidic enough to react with baking soda, producing carbon dioxide that helps cookies rise and develop a tender crumb. The acidity also helps neutralize any alkaline flavors from the baking soda.
When substituting, use fresh lemon juice for best results and avoid excessive amounts to prevent a citrusy aftertaste. It’s best to measure precisely to maintain the balance of acidity.
Compared to white vinegar, lemon juice adds a subtle brightness but does not significantly alter the cookie’s flavor or texture, making it an excellent direct substitute.