Step 1: Preheat the Oven - Begin by preheating your oven to 350°F (175°C).
Step 2: Cream the Butter and Sugar - In a large mixing bowl, combine the softened unsalted butter and sugar. Beat on medium speed until light and fluffy, about 2-3 minutes.
Step 3: Add the Eggs and Vanilla - Add the slightly beaten eggs and vanilla extract to the butter-sugar mixture. Mix until well combined.
Step 4: Combine the Dry Ingredients - In a separate bowl, whisk together the flour, baking soda, baking powder, and salt. Gradually add to the wet ingredients, mixing until just combined.
Step 5: Fold in the Chocolate Chips - Gently fold in both the milk chocolate chips and semi-sweet chocolate chips until evenly distributed.
Step 6: Scoop the Dough - Drop rounded balls of dough onto a baking sheet lined with parchment paper, leaving space between each cookie.
Step 7: Bake the Cookies - Bake for 10-12 minutes, or until the edges are lightly golden. The centers may look slightly underbaked.
Step 8: Cool and Enjoy - Let the cookies cool on the baking sheets for about 5 minutes before transferring to a wire rack to cool completely.
