White Vinegar (Best Option)
1 teaspoon per 1 tablespoon of lemon juiceWhite vinegar is an excellent acidulant that reacts with baking soda or baking powder to produce carbon dioxide, which helps the pound cake rise properly. Its mild flavor ensures it won't overpower the delicate buttery taste of the cake.
When using white vinegar, measure carefully to avoid an overly tangy flavor. Itβs best to use distilled white vinegar for a neutral taste. Mix it well with other wet ingredients to ensure even distribution.
Compared to lemon juice, white vinegar provides similar acidity but lacks citrus notes, resulting in a slightly less complex flavor profile while preserving the cakeβs moist and tender crumb.