Wanna make the best cookies you ever ate? Check out this no flour monster cookie recipe for all the cookie monsters in your life.

Monster Cookie Recipe

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Wanna make the best cookies you’ve ever eaten? Check out this no flour monster cookie recipe for all the cookie monsters in your life. It’s an old fashioned dessert that grandma would be proud of!

monster cookie  batter in a bowl and monster cookies on a cooling rack

Monster cookies contain oatmeal, peanut butter, and of course, the best thing, chocolate. They are chewy on the inside, crispy on the outside, and packed to the tippy top with delicious flavor!  Kids love monster cookies, adults love monster cookies, and my family can’t get enough monster cookies. (You’d think cookie monster lived here)

At Little Sprouts, we have lots of cookie monsters who love to eat cookies (not to mention their cookie-loving parents) so I have a few cookies that are famous around these parts.  This monster cookie recipe without flour has been a favorite here for years. 

I adapted the recipe from one I got from my sweet Aunt Pat years ago.  She gave me some monster cookies for Christmas with the recipe attached. I’ve always treasured it, and her, and everything she’s given me. She’s a special lady.

These monster cookies freeze great because they don’t contain flour or baking powder. They also store well at room temperature for several days. They make such a huge batch, so it’s great to have a good way to store extras for later.

I love having cookies in the freezer to pop out if someone comes by or I want to give someone a gift. Bulk freezer cooking is my jam.

Some tips to remember when making them:

Stir the monster cookie dough super thoroughly, hopefully, you have a Hulk like I do at your house to help you with that part. It’s hard for me to get them stirred and the whole batch doesn’t fit in the mixer, so if I need to mix them by myself, I cut the recipe in half and use the Kitchen Aid.

You need a giant bowl because it makes a lot! I have a thatsabowl from tupperware the cookie dough fits in and it fits in my 32 cup stainless steel mixing bowl too. Remember, it’s a GIANT MONSTER COOKIE recipe. If you don’t have a bunch of cookie monsters in your house, you can half the recipe

Giant monster cookies

You can also make giant monster cookies to give as gifts. Just scoop out a big ole ball of cookie dough onto a baking sheet with an ice cream scoop and bake them about 3 minutes longer. Then cool them on a rack. Once they are cooled, you can put one giant monster cookie in a big cello bag and tie a ribbon on the top. It would make a super cute gift!

I hope you and the ones you love enjoy monster cookies as much as we do.

Monster Cookies, fresh from the oven

Cookie Monster (and the cookie monsters around here) will love these cookies. He would be so excited to nom nom nom these monster cookies or monster cookie bars any day. I’ve seen him do it. 

monster cookie batter
monster cookie dough

Monster cookies no flour

Print Recipe
4.34 from 15 votes

Monster Cookies

A delicious drop cookie with oatmeal, chocolate, and peanut butter
Prep Time15 minutes
Cook Time12 minutes
Total Time27 minutes
Course: Dessert
Cuisine: American
Keyword: flourless, monster cookies, oatmeal
Servings: 40
Author: Christina Kamp

Ingredients

  • 6 eggs
  • 2 sticks room temperature butter don’t you dare ruin these cookies with margarine!
  • 4 c. raw sugar
  • 4 T. vanilla
  • 2 1/2 c. creamy peanut butter
  • 4 tsp. baking soda
  • 9 c. rolled oats
  • 1 c. chocolate chips
  • 1 c. m and ms

Instructions

  • Mix in a very large bowl: Eggs, butter, sugar, and vanilla. Stir very well.
  • Add peanut butter and mix well.
  • Add baking soda and rolled oats and mix very well
  • Add chocolate chips and m and m’s and mix well.
  • Drop rounded dough balls onto greased cookie sheets.
  • Bake at 350 for 10-12 minutes.
  • Don’t let them get too brown!

Notes

Adapted from Aunt Pat's recipe

These monster cookies would make a great cookie bar. Just smash half the batter into a 9 x 13 pan and bake it for longer to cook the bars. I would try starting with 25 minutes and see if the center is set, if not, go a little longer. Monster cookie bars would be DELICIOUS!

If you want a thinner monster cookie bar, just use 1/4 of the dough in a pan and start with 20 minutes cooking time.

More Little Sprouts cookies:

Wanna make the best cookies you ever ate? Check out this no flour monster cookie recipe for all the cookie monsters in your life.

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10 Comments

  1. 1 star
    These cookies, as I feared, had no reason to not be a flop. The dough flattened into a pancake. I wish I’d not jumped into a big batch. They taste ok, but look nothing like the picture. I think they need something else, for sure. Things missing from the recipe includes ball sizes. I experimented with big balls and little balls, in hopes they wouldn’t just spread into a pancake. Definitely not what hoped for. Pretty expensive cookie to flop.

    1. Hi Cherie, I’m so sorry your cookies didn’t turn out. I know it’s disappointing to waste ingredients. I’ve never had them not turn out or had anyone say they didn’t. As far as sizes, it’s up to the scooper how big of cookies they want. They are traditionally made with a muffin scoop and are a great big cookie, but since I run a home daycare, I make mine toddler sized. Any size I have made them has always worked. There are a few things to remember. Usually when cookies are too thin it’s because there is too much sugar. If you substitute white sugar for the raw sugar, you may have to reduce the amount by a little bit because regular sugar tends to be a little more concentrated. Another thing could be too much moisture. Check the butter. Sometimes generic butter has more water in it, and that might mess up the recipe. I always try to use land o lakes or hiland butter or horizon organic when baking because they are more butter and have less water whipped in. In addition, margarine has a lot of water and would do that. And the only other thing I can think of is using quick oats instead of rolled oats would make them less structured as well. If none of these things happened, I’m not sure what it could be. It’s always been a fool proof recipe. I am so sorry for your disappointment. I hope you will give them another chance, they are so delicious!

  2. 5 stars
    These look sooo good! I love the addition of peanut butter and rolled oats! A perfect recipe for me to make with all those left over bags of m&m’s from our Gingerbread House party!

  3. 5 stars
    Sounds good, Christina! I printed the recipe and will definitely try them – but I think I’ll have to reduce it to one third with only two aging monsters in the house to consume them!!

  4. 5 stars
    I love monster cookies! They remind me of something my mom made when I was little and that my brothers still request — Ranger cookies. Mom’s cookies are always hockey pucks, hard and crunchy because my dad likes them that way, and not really to my taste. But, memories 🙂 These look delicious and I think I’ll try making a batch soon. Thanks for sharing!