For an extra-crisp and refreshing treat, brush the cutout shapes with 1tablespoon buttermilk and sprinkle with sanding sugar before baking the cookies.
Ingredients
3cups (15oz/470g) all-purpose flour, plus more for dusting
In a bowl, whisk together the 3 cups flour, baking soda, cream of tartar, and salt. In a large bowl, using an electric mixer on medium-high speed, beat the butter and sugar until light and fluffy, 2–3 minutes. Add the egg and lemon zest and beat on low speed until the egg is completely incorporated. Beating on low speed, slowly add the flour mixture and continue to beat