Preheat oven to 350°F; line two baking sheets with parchment.

Whisk flour, baking soda, and salt in a medium bowl; set aside.

Beat butter and both sugars in a large bowl about 3 minutes, until light and fluffy.

Beat in eggs one at a time, beating well after each; mix in vanilla.

Gradually stir in flour mixture just until combined; do not overmix.

Fold in chopped chocolate, reserving a handful for topping before baking.

Scoop 2-tablespoon portions onto prepared sheets, 2 inches apart.

Press reserved chocolate chunks onto each dough ball.

Bake 11-13 minutes, until edges are golden and centers look slightly underdone.

Cool on sheet 5 minutes; transfer to wire rack.