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

This page may contain affiliate links. Learn More.

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
4.91 from 10 votes

Monster Cookies

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


  • 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


  • 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!


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.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.


  1. 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!

  2. 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!!

  3. 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!