Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.

In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.

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

Add the eggs one at a time and mix well after each addition. Stir in the vanilla extract.

Gradually add the dry ingredients to the wet ingredients and mix until just combined.

Fold in the chocolate chips and M&M candies until evenly distributed.

Drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart.

Bake for 10-12 minutes or until the edges are golden brown. Allow to cool on the baking sheets for 5 minutes before transferring to a wire rack.