This post may contain affiliate links, view our disclosure policy.
HALLOWEEN MONSTER COOKIES
I love this Halloween version of the traditional monster cookies because I am all about making food and treats to celebrate the different Holidays.
WHAT ARE MONSTER COOKIES?
Monster cookies just happen to be one of my family’s most favorite treats. Monster cookies or bars, or whatever it may be, have a combination of peanut butter, oats, usually m&m’s, and chocolate chips!
I even have this recipe for peanut butter lovers monster cookies that are loaded with all peanut butter! Instead of chocolate chips they use peanut butter chips and mini Reese’s pieces candy.
The special ingredients for these cookies are the goulish mix of m&m candies and the candy eyeballs.
The goulish mix are just m&m’s that are Halloween colors. Like lime green, orange, and black. You can find these pretty much anywhere. Look for them in the Halloween candy aisle at the grocery store.
The candy eyeballs can be found in most larger grocery stores. During Halloween you can find them in the Halloween aisle by the other decorative baking goods and sprinkles.
MY TIPS FOR THIS HALLOWEEN RECIPE
- DO NOT use natural peanut butter. Whenever a monster cookie type recipe does not turn out well for someone, it’s more than likely because they used natural peanut butter. You need the regular peanut butter because it has more oil in it and it’s not as dry as the natural stuff. So for the best results please use good ol’ regular peanut butter.
- Rolling the dough into balls before baking ensures that they stay puffy while cooking and don’t spread as much. When they come out of the oven they will still look fairly puffy, but as you gently press more m&m’s on top of the cookies, they will flatten out slightly and look more like a cookie.
- If you’re having a party try making this cute white chocolate boo bark or this Halloween S’mores Dip along with today’s Halloween recipe for these monster cookies.
Halloween Monster Cookies
- 3 cups old-fashioned oats
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt (increase to 1 teaspoon if using unsalted butter)
- 1 cup (2 sticks) butter softened
- 1 cup creamy peanut butter
- 1 cup brown sugar
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 1/2 cups goulish halloween m&m's (orange, lime green, purple m&m's)
- small candy eyeballs
- Heat oven to 350°. Prepare cookie sheets by lining with parchment paper, silpat liner, or spray lightly with cooking spray. Set aside.
- In a medium bowl, whisk together the oats, flour, baking soda, and salt.
- In a large mixing bowl, beat together the butter, peanut butter, brown sugar, and granulated sugar until creamy and combined well. About 1-2 minutes. Add in the eggs and vanilla extract. Blend until combined.
- Mix the oat mixture into the butter mix, on low speed, and gradually increase the speed as needed just until everything is combined well. Add in the halloween m&m's and blend until combined.
- Take about 2 tablespoons of dough (I use a cookie scoop for this) and roll it into a ball. When done, the dough balls will look like golf balls. Place 12 dough balls onto the cookie sheet. Bake for 9-11 minutes. *Don't overbake these! They will continue cooking as they cool on the cookie sheet. The cookies should look puffy and not look wet.
- Immediately, gently press a few additional m&m's on top of each cookie and two candy eyeballs.
- Move the cookie to a cooling rack to cool completely. Store leftovers in a covered container out at room temperature. Leftovers are really good heated in the microwave for a few seconds.