These monster cookies are a thick soft and chewy peanut butter and oatmeal cookie packed full of colorful m&ms and chocolate chips for a fun and delicious cookie everyone loves!
Last weekend I went to a food blogging conference. It’s always so fun and great to connect with others who are like minded and really understand what I do for a living and how I do this whole blogging gig as a job.
The food was delicious, which you always hope that it will be at a foodie conference, but it was very healthy. Now I’m not against healthy foods at all, but when it comes to snack time I want a bag of chips and a cookie, not just some dried fruit and granola bars. Of course those have their time and place, but the whole time I was craving a cookie, and one of these monster cookies would have really hit the spot.
What is a monster cookie?
If you haven’t had a monster cookie before, basically it’s a peanut butter cookie meets an oatmeal cookie, and stuffed full of chocolate chips and m&ms. They’re thick and chewy and soft cookies and they are delicious.
I’m not sure where the name of the monster cookie comes from, but since they have the name “monster cookies” I figured they’d be the perfect cookie to share just as I’m starting to share Halloween recipes. Stay tuned for my monster Rice Krispie treats on Friday, which do not have peanut butter or oatmeal or m&ms but are decorated to look like monsters instead 😉
Also, with a name like monster cookies, I figured these cookies might as well be large, because who doesn’t want a monster sized monster cookie?! These cookies are made with 1/4 cup of cookie dough per cookie. You can easily make them smaller, or larger, which will definitely effect the cookie baking times. I made some cookies that were more “normal” sized that are baked with 2 tablespoons of dough. The large cookies are baked for 12-14 minutes, the smaller cookies are baked for about 9-10 minutes.
If you make them 6 tablespoons or 1/2 cup instead the baking time will go up even more, but I haven’t tested these sized to let you know exactly how long those would take.
These cookies are so quick to make! The dough is made in just one bowl, with or without a stand mixer. The cookies are ready to be baked up in only about 5 minutes time, or as long as it takes for you to preheat your oven. You don’t need to chill the dough at all. It shouldn’t be too sticky, but if it just toss it in the fridge for like 30 minutes!
Once you’re oven is preheated scoop out the cookie dough and roll it into nice little balls and place it on a baking sheet lined with parchment paper or a silicone liner.
Flatten the cookie dough balls with your hands or the bottom of a cup. They’ll look a little more like a thick pancake. The cookies don’t flatten or spread a lot as they bake, so you’ll do this to give them their nice shape. I rounded the edges of mine and filled in the gaps to give the cookies their really nice round shapes, but I promise they’ll taste good either way!
I love the bits of chocolate you get in every bite of these cookies. I love the m&ms and the chocolate chips together. The m&ms add such a fun amount of color to these cookies.
Every bite of these cookies is chewy, soft and thick. The oats add such a yummy texture to the cookies. The combination of chocolate and peanut butter in these cookies is perfection! I hope you love them as much as we do!
Looking for more peanut butter cookies:
- Peanut Butter Chocolate Chip Cookie Recipe
- Peanut Butter Cookies
- Chocolate and Peanut Butter Swirl Cookies
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- 1/2 cup butter (1 stick, softened)
- 3/4 cup peanut butter
- 1/2 cup brown sugar
- 1/2 cup sugar
- 1 tsp vanilla
- 1 egg
- 1 cup flour
- 1/2 tsp salt
- 1 tsp baking soda
- 1 cup oats
- 3/4 cup m&ms
- 3/4 cup chocolate chips
- Preheat the oven to 350 degrees.
- Add butter, peanut butter, brown sugar, and sugar to a large mixing bowl.
- Cream together for about 2 minutes, or until it starts to lighten (a stand mixer or hand held mixer is best).
- Add in the vanilla and egg and mix until just combined.
- Dump in the flour, salt, and baking soda. Stir them into the mixture until just combined.
- Add in the oats, m&ms, and chocolate chips. Fold mixture together till they are mixed around evenly.
- Measure out 1/4 cup of cookie dough and roll into a ball. Place 6-8 balls on a lined cookie sheet.
- Slightly flatten cookie dough balls, to look more like a pancake. Smooth the edges as desired.
- Press additional m&ms and chocolate chips onto the top if desired.
- Bake cookies for 12-14 minutes until the edges start to turn golden and the tops crack a little.
- Allow the cookies to cool on the cookie sheet for 3-4 minutes before moving them to a cooling rack to cool completely.