A meringue’s structure relies on stabilized egg whites, typically achieved with an acidic ingredient. When a specific acid is unavailable, alternatives must be employed to ensure proper protein denaturing and a stable foam. This necessitates careful adjustments to technique and ingredient ratios to compensate for the absence of the conventional stabilizer.
Historically, cream of tartar has been a common addition to these recipes, contributing to a finer texture and increased volume. The omission of this ingredient presents a challenge in achieving the same results, requiring a deeper understanding of the chemical reactions involved in meringue formation. Successful substitution preserves the delicate balance needed for a light and airy final product.