This Monster Cookie recipe has been handed down many generations in my family. It was a favorite in my childhood during the Holidays and now a favorite of my own children as well. This cookie is easy to make and delicious to eat and makes a large batch so you will have plenty to share. Perfect for Halloween and Christmas.
Prep Time10 minutesmins
Cook Time11 minutesmins
Total Time21 minutesmins
Course: Dessert
Cuisine: American
Keyword: chewy oatmeal cookies, christmas cookies, halloween cookies, monster cookies, monster cookies recipe, oatmeal cookies
Preheat oven to 350°F and line cookie sheets with parchment paper.
Combine softened butter, peanut butter, granulated sugar, brown sugar, vanilla, and eggs in a mixing bowl and beat until creamy.
Slowly add the oatmeal and baking soda to the wet mixture and beat until combined.
Stir in the chocolate chips and M&M's, until evenly distributed in the cookie dough.
Scoop cookies by 1 and a half tablespoons or use a #40 cookie scoop to portion the cookie dough and place them onto the prepared cookie sheets two inches apart.
Bake for 11 to 13 minutes, let them cool for 5 minutes before transferring them to a cooling rack to cool completely.
Store in an airtight container.
Notes
*To make these cookies gluten-free, choose gluten-free options for the oats, chocolate chips, and chocolate candies.