โญ Baking Soda and Cream of Tartar (Best Vegan Option)
1/4 teaspoon baking soda + 1/2 teaspoon cream of tartar per 3/4 teaspoon baking powderThis combination mimics the chemical leavening action of baking powder by providing an acid-base reaction that produces carbon dioxide gas, which helps the crust rise and become flaky. Cream of tartar acts as the acid, while baking soda is the base.
For best results, mix the two powders thoroughly into the dry ingredients to ensure even leavening. Avoid adding extra liquid as this substitution does not contribute moisture.
The final crust will have a similar rise and flakiness compared to using baking powder, preserving the classic texture expected in Chicken Pot Pie without altering the savory flavor.