White Vinegar (Best Option)
1:1 (replace 1 tablespoon apple cider vinegar with 1 tablespoon white vinegar)White vinegar has a similar acidity level (around 5%) as apple cider vinegar, which is essential for activating baking soda in scones to produce carbon dioxide gas for leavening. This reaction helps create a light, fluffy texture and tender crumb.
When substituting, use the exact same amount to maintain the balance of acid and base in the recipe. White vinegar's neutral flavor ensures the scones' taste remains close to the original.
Compared to apple cider vinegar, white vinegar does not impart any fruity or slightly sweet notes, so the flavor will be slightly more neutral but still pleasant and appropriate for scones.