Preheat your oven to 350°F (175°C) and line a muffin tin with paper liners.
In a medium mixing bowl, whisk together the all-purpose flour, baking powder, and salt until well combined.
In a large mixing bowl, use an electric mixer to cream together the softened unsalted butter, granulated white sugar, and packed light brown sugar until light and fluffy, about 3-5 minutes.
Add the three large eggs one at a time, mixing well after each addition. Then, stir in the pure vanilla extract until fully incorporated.
Gradually add the dry ingredient mixture to the butter and sugar mixture, alternating with the whole milk until everything is combined. Do not overmix.
Using a spatula, gently fold in the semi-sweet chocolate chunks.
Spoon the batter into the prepared muffin tin, filling each liner about two-thirds full. Bake for 18-20 minutes, or until a toothpick inserted into the center comes out clean.
Allow the cupcakes to cool in the pan for about 5 minutes before transferring them to a wire rack to cool completely.