(change it from a recipe that uses egg to one that is eggless so it can also be eaten by people who are vegetarian or do not eat egg for religious or cultural reasons)
Original Ingredient List
1 cup all-purpose flour 1 1/2 teaspoons baking powder 1 cup butter, softened 1 cup confectioners' sugar 2 eggs, room temperature 1 teaspoon vanilla extract 1/2 cup milk, room temperature
Adjustment to Ingredients
Replace the egg for yogurt/buttermilk by substituting it for 1/4 cup of buttermilk or yogurt for each egg. Since this recipe calls for 2 eggs, you would need 1/2 of buttermilk or yogurt altogether. These can usually be found in the refrigerated section of a grocery store by the regular milk.
Eggless Recipe Ingredients
1 cup all-purpose flour 1 1/2 teaspoons baking powder 1 cup butter, softened 1 cup confectioners' sugar 1/2 cup of buttermilk or yogurt 1 teaspoon vanilla extract 1/2 cup milk, room temperature