– 1 cup (230 grams) unsalted butter sliced into tablespoon-sized piece – 2 and ½ cups (315 grams) all-purpose flour spooned & leveled – 1 teaspoon baking soda – ¾ teaspoon salt – 1 cup (200 grams) light brown sugar packed – ½ cup (100 grams) granulated sugar – 2 large eggs at room temperature – 1 and ½ teaspoons pure vanilla extract – 1 and ½ cups (270 grams) semi-sweet chocolate chip