Preheat your oven to 375 and line a baking sheet with parchment paper.

In a large bowl, combine the brownie mix, eggs, flour and oil. Once combined, add in the M&M's. Mix those until just combined.

Using a cookie scoop, scoop your cookie dough and set them 2 inches apart on the prepared baking sheet. Top with a few more M&M's if you'd like. 

Bake for 10-12 minutes. Until the edges look ready and only the center looks a bit underdone. 

Remove from oven and set them down to cool for about 15-20 minutes. Remove from baking sheet and enjoy warm with a tall glass of milk!