This post may contain affiliate links. Please see disclosure policy here.
Monster Cookies are a combination of oats, peanut butter and chocolate chips with M & M’s on top. There is no flour in this recipe. You can make them large or small and they are definitely a crowd favorite.
Why You’ll Love This Recipe
Monster Cookies are one of those classic cookie recipes, one that I’ve been making for years and years. They are the perfect combination of peanut butter cookies and oatmeal cookies with the bonus of chocolate chips and M & M’s!
These cookies are also a great choice if you are looking for a flourless cookie. Make sure to use gluten free oats if you want to make the cookie truly gluten free.
Ingredients Needed
- Old Fashioned Oats
- Peanut Butter
- Sugar, Brown Sugar and Granulated Sugar
- Butter
- Corn Syrup
- Eggs
- Vanilla Extract
- Salt
- Baking Soda
- Chocolate Chips
- M & M’s
How to Make Monster Cookies
- Preheat oven to 350 degrees F. Line baking sheets with parchment.
- In the bowl of a stand mixer with the paddle attachment, cream together the sugar, brown sugar, corn syrup and butter until light and fluffy.
- Beat in the eggs, one at a time, and then beat in the peanut butter, vanilla, baking soda and salt until well combined.
- Add the the oats and mix until combined, then add the chocolate chips.
- Scoop dough onto the prepared baking sheets, spacing the mounds at least 2 inches apart. I use a 1/4 cup scoop. (I made the ones in the photo a bit smaller as I needed to get more cookies.)
- Bake the cookies for 12-15 minutes then remove them from the oven.
- Press M & M’s into the cookies while they are still warm.
- Allow them to cool for 5 minutes on the baking sheets before transferring them to a rack to cool completely.
Monster Cookie Tips
- I prefer creamy peanut butter but you can use crunchy too to add in more texture.
- Using old fashioned oats will give you a chewier texture to the cookies.
- Having your ingredients at room temperature will help them to combine better.
Frequently Asked Questions
Can I Freeze Monster Cookies?
Yes, Monster Cookies freeze well. Make sure they have completely cooled before putting them in an airtight container in the freezer. I have an entire post on how to freeze cookies that you can read for more details.
Are Monster Cookies Gluten Free?
There is no flour in Monster Cookies, but you will want to make sure to use gluten free oats to ensure that the cookies are truly gluten free. Gluten free oats are processed and packaged in a gluten free facility.
Check out more of my favorite cookie recipes:
Be sure and follow me over on You Tube for weekly cooking demos.
Monster Cookie Recipe
Ingredients
- 1/2 cup butter
- 1 3/4 cups peanut butter
- 1 1/3 cups brown sugar
- 1 cup sugar
- 1 Tbsp corn syrup
- 3 eggs
- 1/2 Tbsp vanilla
- 1/4 tsp salt
- 2 tsp baking soda
- 1/2 cup chocolate chips
- 4 1/2 cups old fashioned oats
- 1/2 cup M & M’s
Instructions
- Preheat oven to 350 degrees F and line baking sheets with parchment paper.
- n the bowl of a stand mixer fitted with the paddle attachment, cream together the sugar, brown sugar and butter until light and fluffy.
- Beat in the eggs and then beat in the peanut butter, vanilla, baking soda and salt until well combined.
- Add the the oats and mix until combined, then add the chocolate chips.
- Use a scoop to form cookies. I use a 1/4 cup scoop for nice big cookies.
- Bake 350 degrees F for 10-15 minutes. Do not over bake.
- As the cookies come out of oven, press M & M’s into cookies
- Allow to cool on a baking rack
Tips & Notes:
- Peanut Butter – I prefer creamy peanut butter but you can use crunchy too.
- Oatmeal – Using old fashioned oats will give you a chewier texture to the cookies.
- Room Temperature – Having your ingredients at room temperature will help them to combine better.
- Freeze Well – Monster cookies are freeze really well and are a perfect make ahead cookie. You can find all my tips for freezing cookies here.
Recommended Products
Nutrition Facts:
Lori says
Those cookies look so good! You always do such a great job with presentation and making everything look pretty!
Tracy says
Thanks for posting your Monster Cookie Recipe. We’ll definitely try them – especially since they contain no gluten (we have gluten free oats!) It’s always nice to have a recipe that everyone can eat.
Valerie H. says
Oh my! Your Monster Cookie recipe looks REALLY good!
I’d like one right now! How do you stay so slim with
all the cup cakes and cookies you make? 😉
Julie says
OOoooooo! thanks for the great recipe. Used to make these (but with flour) a Loooong time ago for my hubby to be in college. Have to do this new twist without flour! can’t wait. Also went over to the sugar cookie post and then to the “candy corn” cookie post. Ready to do all!!!
Happy Fall. Enjoying your blog with all the great recipes. Keep sharing.!!! by the way, I have printed your zucchini cupcake recipe and PLAN on trying it, and want to try the blueberry corn salad…just want to use fresh and not frozen blueberries, so need to get some.
My family is thankful for your recipe sharing!!!
Lorie says
The monster cookies look amazing! I will definitely try them for lunch box goodies too. Oh..and the corn and blueberry salad…I served it at a barbecue on Sunday. Everyone loved it and couldn’t believe how the combination worked. Thanks so much!