White Wine Vinegar (Best Option)
1 teaspoon per 1 tablespoon of lemon juiceWhite wine vinegar has a clean, mild acidity similar to lemon juice, which is essential for balancing the richness of the egg yolks and butter in Hollandaise sauce. The acid also helps stabilize the emulsion, preventing separation.
When using white wine vinegar, add it gradually and taste as you go to avoid overpowering the sauce. Because it is slightly more acidic than lemon juice, start with a slightly lower amount and adjust accordingly.
The final sauce will have a slightly different but still bright and tangy flavor, closely mimicking the original lemon juice profile without compromising texture or stability.