Menu Close

The Perfect Monster Cookie Recipe

The best monster cookie recipe on the planet.

The Perfect Monster Cookie Recipe

The best monster cookie recipe on the planet.

You all know I don’t like to cook. If I were rich, I would totally have a personal chef who would cook me nutritious, perfectly balanced meals every day. Huge chicken Ceasar salads, juicy hamburgers made with lean beef and tons of roasted veggies. Oh, and every so often, bake me monster cookies. The best monster cookie recipe on the planet.

But, alas, this blog has yet to make me rich and my kids still want to eat every day, still outgrow their shoes, and expect us to pay for dental visits. So instead I have been forced to experiment time and time again until I perfect my favorite recipes. And today, I am sharing with you The Perfect Monster Cookie Recipe.

The best monster cookie recipe on the planet.

First off, a few words about monster cookies. They should be BIG and chewy, so you want to make sure you don’t overcook them.  I have found (through rigorous testing) the exact balance between M&Ms, chocolate, and Reese’s Pieces. Don’t mess with this!

Also, are fans of Adams Natural Peanut Butter, but do not use the natural peanut butter with these cookies. To get the right texture, use regular peanut butter. For these, I used peanut butter purchased from Brandless (more on that later since I am working on a review).

The best monster cookie recipe on the planet.

Monster cookies don’t contain any wheat flour. I have found that to get The Perfect Chunky Chewy Texture you need to make some oat flour. All you need to do it take a cup and a half of old-fashioned oats and whir them in the blender for a few seconds. This will give you a beautiful oat flour to use in your monster cookies.

The best monster cookie recipe on the planet.

And now, with no further ado, The Perfect Monster Cookie Recipe.

Monster Cookie Recipe

These cookies are simple to make, hearty and filling, and will bring a smile to your lips!

Course Dessert
Keyword Sweet
Prep Time 15 minutes
Cook Time 10 minutes
Servings 2 dozen


  • 1/2 cup butter
  • 1 1/4 cup brown sugar
  • 1 cup granulated sugar
  • 2 eggs
  • 1/2 cup peanut butter
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1 1/4 cup oats
  • 1 cup oat flour (grind oats in blender to product flour)
  • `1/2 cup M&M
  • 1/2 cup Reese's Pieces
  • 2 chocolate bars, chopped


  1. Preheat oven to 350

    Cream butter and sugars together.

    Add in egg, peanut butter, and vanilla.

    In separate bowl combine oats, oat flour, baking soda, and salt.

    Combine wet and dry ingredients.

    Gently mix in candy.

    Scoop onto cookie sheets.

    These cookies do not spread much so cookies can be placed closely.

    Bake 8-10 minutes. These cookies should still be soft and just slightly brown on the bottom.

The best monster cookie recipe on the planet.

The best monster cookie recipe on the planet.

The best monster cookie recipe on the planet.

The best monster cookie recipe on the planet.

Even my mom’s cat can’t resist these monster cookies!

What is your favorite cookie recipe? Bonus points if you share a link!





  1. Melpub

    I’m going to try these. They look great. But I had no idea you hated cooking. You make so many great things. A friend suggested an Instapot to me–they do look great. You would need the largest size, possibly two, but you would sooooo enjoy.

    • Renee

      Seriously? I thought I started every cooking/recipe post wit the caveat that I hate cooking. The only thing that saves us is a tight budget and my love of EATING good food. I have an Instant Pot and have posted several recipes here. One is plenty for us. I cook the main dish in and then make sides.

  2. Laurie

    Thank you for this recipe Renee. I haven’t baked cookies in years but these are tempting enough to try because I always loved chewy cookies. Also I thought of you earlier today when I read a blog from a dad in eastern Canada on supporting emotional regulation for children with ASD and FASD diagnoses. You probably already know this information but I usually learn something from everything I read so I thought I’d share this one with you.

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.