Valentine’s Day Monster Cookies

A thick, chewy peanut butter cookie stuffed with oats, M&M’s, and chocolate chips. Make these for your loved ones (or yourself) this Valentine’s Day!

Valentines Day monster cookies 3

I was introduced to my first monster cookie last Friday. Instantly after I had savored it so delicately I knew that my next mission would be to recreate them. I couldn’t be happier with the result!

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These cookies are almost healthy enough to eat for breakfast. I mean, peanut butter and oats are the main ingredients, and those are part of my breakfast every morning! I considered using a banana or applesauce in place of the butter, but what is life without some of the good stuff? A cookie without butter is like Valentine’s Day without chocolate. All about balance, people! 

valentines day monster cookie 2

These are man-approved too, by my very own father. It’s a running joke that he should be an amateur food critic. He’s always saying what the dish is missing/shouldn’t have. His only complaint with these was the dark chocolate chips! Who doesn’t like dark chocolate… weirdo. IF you’re crazy like him, you can simply swap for more milk/semi sweet chips.

valentines day monster cookies

I’m going to bring these to school in little baggies and give them to my friends! Everyone will want to be your valentine if you give these babies out.

valentines day monster cookie

Without further ado, I bring you Valentine’s Day Monster Cookies!

Valentine's Day Monster Cookies
Yields 24
The perfect treat for Valentine's Day, these monster cookies are loaded with M&M's, chocolate chips, peanut butter, and oats!
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Prep Time
15 min
Total Time
30 min
Prep Time
15 min
Total Time
30 min
  1. 1 cup peanut butter (I used Skippy creamy natural)
  2. 1 cup brown sugar
  3. 1/3 cup white sugar
  4. 6 tbsp butter, softened
  5. 2 eggs
  6. 2 tsp vanilla
  7. 2 1/2 cups quick cooking oats
  8. 1/2 cup old fashioned oats
  9. 1 tsp baking soda
  10. 1/2 cup dark chocolate chips
  11. 1/4 cup milk chocolate chips
  12. 1/2 cup M&M's
  1. Preheat oven to 350. Line cookie sheets with parchment paper or spray with non-stick spray.
  2. Using a mixer, cream together the peanut butter, sugars, and butter. Mix in the eggs and vanilla. Add in the oats and baking soda. Finally, add in the chocolate chips and M&M's. Your dough should be THICK!
  3. Form dough into balls and place onto the sheets. Use a cookie scooper, an ice cream scooper, or your hands, depending on how large you want to cookies to be.
  4. Flatten the balls only slightly and top with additional M&M's and chocolate chips.
  5. Bake for 13-15 minutes or until cookies are slightly golden brown. Do not overbake!
Adapted from Recipe Girl
Adapted from Recipe Girl
The Yooper Girl
valentines day monster cookie 3

On second thought, maybe I’ll just keep them at home… Me, the cookies, the couch, and Pinterest Friday night? Sounds good.

valentines day monster cookies 2 hearts


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Leigha is the founder and writer of The Yooper Girl. She has a passion for living life, eating good food, running long distances, and cats.

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  1. 14


    These are so adorable!!!!!!!!!! I love pink! :D And dark chocolate…I agree, I think people who don’t like dark chocolate are crazy. :) Luckily, my family shares my affinity for the dark side. Hehe.
    I need to make these as soon as the Snowpocalyspe ends!!
    Have a great day chica!


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