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.
- 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:
RW says
This recipe doesn’t say when to add the corn syrup… Which meant it didn’t get added when creaming butter an sugars 🙁 I assume that’s when to add it?
Also, the instructions say to add salt, yet salt is not listed in the ingredients??
Leigh Anne Wilkes says
Sorry about that – add the corn syrup in with the sugar and there is 1/4 tsp salt although I’ve made them without the salt too and they work fine.
janet says
Could you tell me how many cups (approximately) of M & M’s are in 4 ozs. ? Thank you! Looking forward to trying these cookies!
Elizabeth says
I did not make this but everything I really enjoy is in there.
Jamie says
Hi! About how many cookies does this make? I am sure it really depends on the size of the cookies but just an idea would be great. Thanks!
Leigh Anne says
About 3 dozen average size cookies
Heidi Marie Kendall says
These cookies are just wonderful! I had the opportunity to take dinner to a family in our ward who just had a new baby arrive last Friday and they have a wheat allergy. I was looking everywhere for a baked good to take with dinner that didn’t have flour and remembered this recipe 🙂 I’m so glad and greatful for you and your willingness to share your recipes!