Sugar Cookies

Ingredients

• ¾ cup butter, softened
• 1 cup granulated sugar
• ⅓ cup sour cream
• 1 large egg
• 1 teaspoon vanilla extract
• 2 ¾ cups all‑purpose flour
• 1 teaspoon baking powder
• ¼ teaspoon baking soda
• ¼ teaspoon salt
• ⅛ cup butter, softened
• 2 ounces cream cheese, softened
• ½ teaspoon vanilla extract
• 1 cup icing sugar