Candy Bar Monster Cookies

I love a loaded cookie, filled with various ingredients such as nuts, candy, nut butters. Monster cookies are the perfect treat for multiple flavors. I’ve tried and attempted several monster cookie recipes, and while each recipe was definitely full of flavor and variety, every single one was crumbly and dry. There isn’t anything worse than a dry cookie.

So I’ve been trying to perfect the monster cookie for a few years. Thankfully I think I have mastered the recipe. With this recipe I also decided not only should I load it with flavors, but it also needed to be a monster size. I used an ice cream scoop to drop the cookies on the baking sheet.

Candy Bar Monster Cookies

Prep Time 20 minutes
Cook Time 14 minutes
Total Time 34 minutes
Course Dessert
Cuisine American
Servings 15 cookies
Calories 598 kcal


  • ½ cup unsalted butter room temperature
  • 1 cup creamy peanut butter
  • 1 cup granulated sugar
  • cup brown sugar packed
  • 3 large eggs
  • 1 tsp vanilla extract
  • 2 tsp baking soda
  • cups quick oats
  • cups milk chocolate baking m&ms
  • cup Heath Toffee bits
  • cups all-purpose flour


  • In a large electric mixer bowl, cream together the unsalted butter, peanut butter, granulated sugar, and brown sugar until well combined.
  • Add in the eggs and vanilla extract, beating well and scraping the sides of the bowl between mixing.
  • Next sprinkle in the baking soda while the mixer is going so it combines evenly in the batter. Pour in the quick oats and mix just until combined. Then add in the candy. Mix again until combined.
  • Very last, add in the flour a ½ cup at a time and mixing just until combined between additions. Scrape the bowl between each addition.
  • On a parchment lined baking sheet (or use a silicone pad), drop by ice cream scoop full onto the prepared sheet. Make sure there is plenty of space between each cookie mound becuase they will spread out as they bake.
  • Bake at 350°F for 14 minutes or until the edges are slightly brown. Remove from oven and let cool for a couple of minutes before transferring to a cooling rack or paper towel to finish cooling. Serve immedately, or store in an airtight container for up to a week.


***If you want to make the cookies smaller instead of ice cream scoop size, you totally can, just reduce the cooking time to 8-10 minutes depending on if you are doing tablespoon size or slightly smaller.  


Serving: 1servingCalories: 598kcalCarbohydrates: 79gProtein: 10gFat: 29gSaturated Fat: 13gCholesterol: 62mgSodium: 364mgPotassium: 192mgFiber: 3gSugar: 60gVitamin A: 290IUVitamin C: 1mgCalcium: 61mgIron: 2mg
Keyword chocolate, cookies, oats, peanut butter
Tried this recipe?Let us know how it was!

This monster cookie is definitely a soft, chewy cookie. In my opinion, it is the perfect texture between the gooey-ness and the oats inside. Do you have a monster cookie recipe that you love? What types of candy or nuts do you like to add to your monster cookies?

Hope y’all have an amazing week. Stay safe, be kind, and hug your loved ones.

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