Chocolate Chip Cookies, The Cooks Illustrated Way

Ingredients

• 2 cups plus 2 Tbsp all-purpose flour
• 1/2 tsp baking soda
• 1/2 tsp salt
• 12 Tbsp (1-1/2 sticks) unsalted butter, melted and cooled until just warm
• 1 cup packed brown sugar
• 1/2 cup granulated sugar
• 1 large egg, plus 1 large egg yolk
• 2 tsp vanilla extract
• 1 1-1/2 cups semisweet chocolate chips