Cook's Illustrated Brown Sugar Cookies | La Cucina Grandinetti

Ingredients

• 1-3/4 sticks (14 tablespoons) unsalted butter
• 1/4 cup granulated sugar (1-3/4 ounces)
• 2 cups packed dark brown sugar (14 ounces), divided
• 2 cups all-purpose flour plus 2 tablespoons (10-1/2 ounces)
• 1/2 teaspoon baking soda
• 1/4 teaspoon baking powder
• 1/2 teaspoon table salt
• 1 large egg
• 1 large egg yolk
• 1 tablespoon vanilla extract