Hazırlanışı
1Ensure the Unsalted butter for cookie dough is at room temperature. In a mixing bowl, cream the softened Unsalted butter for cookie dough until smooth.
2Gradually add the Powdered sugar to the creamed butter, mixing until light and fluffy.
3In a separate bowl, lightly whisk the Egg whites. Slowly incorporate the Egg whites into the butter-sugar mixture in several additions, mixing well after each addition until fully combined and smooth.
