Celebrate the season with these delightful Christmas Monster Cookies!
In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until it's light and fluffy.
Mix in the eggs and vanilla extract until well combined.
In a separate bowl, whisk together the flour, baking soda, and salt.
Gradually add the dry ingredients to the wet mixture, mixing until it forms a cookie dough.
Gently fold in the old-fashioned oats until they're evenly distributed in the dough.
It's time to make these cookies festive! Add the red and green M&M's, chocolate chips, and festive sprinkles to the dough.