Soft Monster Cookies

4.96 from 21 votes
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These Soft Monster Cookies a soft and chewy cookie that is a cross between a peanut butter cookie, an oatmeal cookie, and a chocolate chip cookie!  Full of lots of goodies everyone loves them!

Cookies that are full of peanut butter, oats, peanut butter chips, chocolate chips, and M&M’s sound pretty much like a dream. Well that is exactly what these monster cookies are, and they are just as decadent and delicious as they sound.

I shared these No Bake Monster Cookie Bars a couple of years ago and they are still very popular. And it is no surprise why!  Those are ready in just minutes and have all the same flavor as your classic monster cookie. 

monster cookies on a cooling rack

 

We are kind of chocolate and peanut butter fans around here.  Reese’s Fudge is essential around here, and not just during the holidays.  So Monster Cookies are definitely right up our alley.

Monster cookies are one of those classics that everyone knows and loves. And you really can make them a lot of different ways. I prefer to have soft and chewy cookies, so that is what this recipe is for. But what you mix in is up to you! You can mix in nuts, butterscotch chips, use different candies etc. Lots of different ways to make them.

monster cookie ingredients

What’s In Monster Cookies

Be sure to scroll to the bottom of the post for the FULL PRINTABLE recipe card.

  • Butter – I always use unsalted in baking
  • Peanut Butter – commercial brands like Skippy or Jif work best for this recipe. I like creamy, but you can use crunchy as well.
  • Brown Sugar
  • White Sugar
  • Egg
  • Vanilla Extract
  • Old Fashioned Oats
  • All-Purpose Flour
  • Baking Soda
  • Salt
  • M&M’s
  • Peanut Butter Chips
  • Chocolate Chips

You can always add more to yours. Peanuts and Butterscotch Chips are common additions as well.

stack of monster cookies on a counter top

How To Make Monster Cookies

  1. Start by creaming together the butter, peanut butter, brown sugar and white sugar until it is light and fluffy. This takes about 2 minutes in an electric stand mixer.
  2. Add in a full egg, and extra egg yolk and vanilla and mix until it is well incorporated.
  3. Next mix in the oats, flour, baking soda and salt until the dough comes together.
  4. Next you get to add all the fun mix-ins! I like peanut butter chips, chocolate chips and M&M’s. Reserve a few of the candies for topping the balls of dough before placing in the oven.
  5. Chill the dough for about 30 minutes, and then scoop balls of dough onto a baking sheet. Top with the reserved candies and bake for 9-10 minutes until the edges are set.
  6. Let the cookies cool on the baking pan for 5 minutes before removing to a wire rack to cool completely.
monster cookies on baking sheet ready for the oven

Cooking Baking Tips & Tricks

  • Start with room temperature butter and eggs. They blend much better with the other ingredients if they are at room temperature
  • If there is more brown sugar in a recipe than white sugar, they will usually turn out softer and chewier
  • Chill the dough. Not all recipes suggest this, and it isn’t always necessary to make good cookies. BUT it never hurts. It just sets up the dough so they don’t spread as much and leads to a thick and chewy cookie.
  • Don’t over bake your cookies. If you want your cookies to be soft, you can’t bake them until they are 100% done in the oven.  You need to take them out early. They will continue to cook on the baking sheet and be the perfect texture.
  • Picture perfect cookies. The way you get the picture perfect top of a cookie is to place a few chocolate chips or M&M’s or whatever mix-in you are using on top of the ball of dough before baking. This way as the cookies bake that stays at the top and you get a pretty top.
monster cookies on a cooling rack

What Kind Of Oats to Use

I like to use old fashioned oats, because I want the texture of the full oat. You can use quick cooking if that is all you have, but they won’t have the same texture and may be a little bit flatter of a cookie.

I always like to freeze cookie dough, because we almost never need a full batch of cookies in our house. Scoop balls of dough onto a baking tray and then place in the freezer until the dough is frozen, and then put the frozen balls of dough into a freezer safe plastic bag.

Then all you have to do is take out however many cookies you want to bake and you can always have fresh cookies!

monster cookies on a cooling rack

Bake up a batch of these monster cookies today and remember what it is like to be a kid again!  These bring back lots of memories from having them at friends house when I was a kid.

Soft Monster Cookies - a soft and chewy cookie that is a cross between a peanut butter cookie, an oatmeal cookie, and a chocolate chip cookie!  Full of lots of goodies everyone loves them!
4.96 from 21 votes

Soft Monster Cookies

By Erin
Soft Monster Cookies – a soft and chewy cookie that is a cross between a peanut butter cookie, an oatmeal cookie, and a chocolate chip cookie!  Full of lots of goodies everyone loves them!
Prep: 10 minutes
Cook: 20 minutes
Additional Time: 30 minutes
Total: 30 minutes
Servings: 36

Ingredients 

Instructions 

  • In an electric mixer cream together butter, peanut butter, brown sugar, and granulated sugar until light and fluffy.
  • Add egg, egg yolk and vanilla and mix until well blended.
  • Mix in oats, flour, baking soda and salt until the dough comes together and there are no streaks of flour.
  • Fold in peanut butter chips, chocolate chips and M&M"s. Reserve some of the candies to use as topping if desired.
  • Scoop balls of dough onto a baking sheet, place the reserved candies on top of each ball of dough. Place the baking sheet in the fridge to chill for 30 minutes.
  • Preheat oven to 350º F.
  • Bake cookies for 9-10 minutes until the edges are just set. Remove from oven and let set for 5 minutes before removing to a wire rack to cool completely.

Notes

These cookies do have enough structure with the oats you can skip the chilling step if you are in a hurry, but I think it helps develop the flavors and give you a softer cookie if you do take the time to chill the dough. 

Nutrition

Serving: 1cookie | Calories: 188kcal | Carbohydrates: 21g | Protein: 4g | Fat: 10g | Saturated Fat: 5g | Polyunsaturated Fat: 5g | Cholesterol: 21mg | Sodium: 142mg | Fiber: 1g | Sugar: 13g

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Author: Erin
Prep Time: 10 minutes
Cook Time: 20 minutes
Additional Time: 30 minutes
Total Time: 30 minutes
Course: Dessert Recipes
Cuisine: American
Servings: 36
Calories: 188
Keyword: monster cookies
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About Erin S

Welcome to Dinners, Dishes, & Desserts where my love of food meets my busy life. My name is Erin and Iโ€™m a casual home cook who loves to feed people. On this blog, youโ€™ll find hundreds of quick and easy recipes made mostly from scratch. My days are spent in the kitchen, creating new recipes to share with family and friends.

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16 Comments

  1. These were such a big hit and absolutely delicious! I love that each bite had a delicious taste! These didnโ€™t last here and my family was all over them!

  2. These won’t last long in my house ๐Ÿ™‚ Glad to have some of the great baking tips to make them perfectly! Love that these are soft!