1. Preheat the oven to 350°F and line two baking sheets with parchment paper.

2. In a large bowl, beat the softened butter, brown sugar, and granulated sugar until light and fluffy.

3. Add the eggs one at a time, then mix in the vanilla extract until smooth.

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

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

6. Fold in the holiday M&M’s, white chocolate chips, pretzel pieces, and sprinkles, saving a small handful for topping if desired.

7. Chill the dough for 30 minutes to help the cookies bake up thick and soft.

8. Scoop the dough into large balls and place them on the prepared baking sheets, spacing them a few inches apart.

9. Press a few extra candies, pretzel bits, and sprinkles on top of each dough ball.

10. Bake for 11 to 13 minutes, or until the edges are lightly golden and the centers still look slightly soft.

11. Let the cookies cool on the baking sheet for 5 minutes, then transfer them to a wire rack to cool completely.