Cook the Book: Chocolate Chip Cookies

INGREDIENTS

• 21/3 cups plus 1 tablespoon all-purpose flour
• 3/4 teaspoon baking soda
• 1 teaspoon kosher salt
• 5 ounces 55% chocolate, cut into chip-sized pieces (about 1 1/4 cups)
• 5 ounces 70 to 72% chocolate, cut into chip-sized pieces (about 1 1/4 cups)
• 1/2 pound (2 sticks) cold unsalted butter, cut into small pieces
• 1 cup packed dark brown sugar, preferably molasses sugar
• 3/4 cup granulated sugar
• 2 large eggs