⭐ Buttermilk and Baking Soda (Best Gluten-Free Option)
1/4 cup buttermilk + 1/4 tsp baking soda per 1 eggButtermilk provides the necessary moisture and acidity to react with baking soda, producing carbon dioxide that helps the scones rise. This combination mimics the leavening and binding properties of eggs without adding fat. The acidity also tenderizes the gluten, contributing to a soft crumb.
To ensure success, mix the baking soda thoroughly into the dry ingredients before adding buttermilk to activate the leavening evenly. Use fresh buttermilk for best results, and avoid overmixing to maintain a tender texture.
Compared to eggs, this substitute yields scones with a slightly tangier flavor and a tender but slightly less rich crumb. The rise is comparable, making it an excellent egg alternative in scones.