Baking Powder (Best Option)
3 teaspoons baking powder per 1 teaspoon baking sodaBaking powder contains both an acid and a base, allowing it to react and produce carbon dioxide gas without needing an external acidic ingredient. This makes it a direct substitute for baking soda in pie crusts, which require leavening for lightness and flakiness.
When substituting, use about three times the amount of baking powder to baking soda to achieve similar leavening power. Be cautious not to overmix the dough to prevent toughness.
The final crust may be marginally less crisp and slightly more tender, but the difference is minimal and often unnoticeable in most pie crust recipes.