Preheat the Oven:

Set your oven to 350°F . Line your baking sheets with parchment paper or silicone baking mats.

Cream the Butter and Sugars:

In a large mixing bowl, beat the softened butter, granulated sugar, and brown sugar together until the mixture is light and fluffy, about 2-3 minutes.

Add Eggs and Vanilla:

Beat in the eggs one at a time, then add the vanilla extract and mix until fully incorporated.

Combine Dry Ingredients:

In a separate bowl, whisk together the flour, baking soda, baking powder, and salt.

Mix Wet and Dry Ingredients:

Gradually add the dry ingredients to the butter mixture, mixing until just combined.

Fold in the Chips and M&Ms:

Gently fold in the M&Ms and chocolate chips, ensuring they are evenly distributed throughout the dough.

Shape the Cookies:

Using a cookie scoop or spoon, drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart.

Bake:

Bake the cookies in the preheated oven for 10-12 minutes, or until the edges are golden brown and the centers remain slightly soft.

Cool:

Let the cookies cool on the baking sheets for 5 minutes before transferring them to a wire rack to cool completely.