Loaded with pantry staples, these oat & flour based Classic Monster Cookies require no chill time and produce a thick, chewy, and delicious cookie that can be enjoyed anytime of year.
Halloween is a time for candy, costumes and, of course, cookies! This year, why not try your hand at making some Halloween Monster Cookies? These cookies are sure to be a hit with both kids and grownups alike.
If you need a tasty cookie recipe for your Halloween party or the spooky season, these cookies are a perfect choice. You might also enjoy these Easy Halloween Cookie Ideas, Halloween Monster Munch, or this Halloween Candy Bark which features OREO cookies.
What are Monster Cookies?
You may have seen monster cookies at your local bakery or grocery store and wondered what they were. Or you may be familiar with them and just want to know where the name came from. Whatever the case may be, monster cookies are a unique type of cookie that is worth trying!
Monster cookies are large, soft, and chewy cookies that are usually loaded with chocolate chips, peanut butter, oats, and M&M’s. They get their name from their “monster” size and ingredients – which are typically items you would find in a baking pantry. Monster cookies are believed to have originated in the United States in the 1970s, and since then they have become a popular treat around the world.
I love these monster cookies so much because they are loaded with classic cookie flavors. When you bite into a monster cookie, you taste a mixture of peanut butter cookies, chocolate chip cookies, and oatmeal cookies all wrapped in one.
How to Make Monster Cookies
Whisk dry ingredients. In a small bowl, whisk the flour, baking soda, oats, and salt.
Cream together the butter and sugar. In a stand mixer fitted with the paddle attachment, cream the butter, granulated sugar, and brown sugar until creamy. Add in the egg, extract, and peanut butter, and beat until creamy and fluffy.
Add dry ingredients. Slowly add in the dry ingredients and mix until combined. Fold in the M&Ms and chocolate chips.
Scoop dough. Using a 2 tablespoon sized cookie scoop, scoop balls of dough and place them 2 inches apart on the parchment-lined cookie sheet.
Bake. In a preheated 350°F oven for 10-12 minutes. Cookies will be lightly golden brown, and feel slightly firm. It is okay if they feel a little under baked as they will firm up as they cool.
Cool. Transfer cookies to a wire cooling rack and cool for 10 minutes.
Storing these Cookies
1. The first thing you need to do is make sure your cookies are completely cooled before storing them. If you try to store them while they’re still warm, they’ll stick together and get mushy.
2. Once they’re cooled, you can either store them in an airtight container or seal them in a freezer bag.
3. If you’re going to be storing them for more than a couple of days, we recommend freezing them. This will help keep them fresh for up to six months!
4. When you’re ready to eat them, all you need to do is thaw them out at room temperature for about an hour.
5. And that’s it! These simple tips will help ensure your monster cookies are always fresh and delicious.
More Cookie Recipes to Try Today
- Chewy Apple Cinnamon Cookies
- Fudge Brownie Cookies
- Soft & Chewy Cinnamon Cookies
- Maraschino Cherry Cookies
- Peppermint Snowball Cookies
Halloween Monster Cookies
Equipment
- Oven adjusted to center rack position
- Measuring cups & spoons
- Stand Mixer
- 2 medium baking sheets
- parchment paper
- 2-tablespoon sized cookie scoop
Ingredients
- ¾ cup Light brown sugar packed
- ¼ cup Granulated sugar
- ½ cup Unsalted butter
- 1 large Egg
- ½ cups Creamy peanut butter
- 1 teaspoon vanilla extract
- 1 cup All-purpose flour
- ½ teaspoon Baking soda
- 1¼ cups Old-fashioned oats
- ¼ teaspoon Salt
- ¾ cup M&MS *I used Halloween mix
- ½ cup Semi-sweet chocolate chips
Instructions
- Preheat oven to 350°F. Line two medium baking sheets with parchment paper.
- In a small bowl, whisk the flour, baking soda, oats, and salt.
- In a stand mixer fitted with the paddle attachment, cream the butter, granulated sugar, and brown sugar until creamy. Add in the egg, extract, and peanut butter, and beat until creamy and fluffy.
- Slowly add in the dry ingredients and mix until combined.
- Fold in the M&Ms and chocolate chips.
- Using a 2 tablespoon sized cookie scoop, scoop balls of dough and place them 2 inches apart on the parchment-lined cookie sheet.
- Bake at 350°F for 10-12 minutes. Cookies will be lightly golden brown, and feel slightly firm. It is okay if they feel a little under baked as they will firm up as they cool.
- Transfer cookies to a wire cooling rack and cool for 10 minutes.
The perfect treat for Halloween. Thanks for sharing the recipe.
Super cute cookies. I made
With my kid and she had a blast
These Halloween Monster cookies are too darn fun – can’t wait to get some Halloween M&M’s and whip up a batch!
These are fantastic. I can’t think of much else that you could have put into these things, and that’s exactly how I like it. They are STUFFED!
These monster cookies were delicious. It was fun to make and my kids enjoyed all the goodies in the cookies!