Classic Soft Sugar Cookie Recipe

Ingredients

• 1 cup (227g) unsalted butter, softened to room temperature
• 1 cup (200g) granulated sugar
• 1 large egg, at room temperature
• 1 teaspoon pure vanilla extract
• 2 ¾ cups (345g) all-purpose flour
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• ½ teaspoon salt
• ½ cup (120ml) sour cream or plain Greek yogurt