White Sugar + Molasses (Best Option)
1 cup white sugar + 1 tablespoon molasses per 1 cup brown sugarBrown sugar is essentially white sugar with molasses added, which provides moisture and a rich, caramel flavor important for pound cake's texture and taste. By mixing white sugar with molasses, you restore both the moisture content and acidity that brown sugar contributes, which helps retain the cake's soft crumb and subtle depth.
For best results, thoroughly blend the molasses into the white sugar to ensure even distribution. This prevents clumping and ensures consistent moisture throughout the batter. Use the exact ratio to avoid making the batter too wet or too dry.
Compared to using brown sugar directly, this substitute yields nearly identical texture and flavor, preserving the pound cake’s classic moistness and caramel notes.