Recipe for Monster Cookies

Mmmm…peanut butter, M&M’s, chocolate chips, and oats combine to make the richest and most satisfying cookies you have ever had! Monster Cookies get their name from the large size of the cookie and the massive amount of deliciousness in each one! I keep this recipe in strong rotation, and I am always asked if I will share the recipe.

You can serve a crowd with this recipe and so I often make these monster cookies for potluck gatherings, tailgate parties, summer get-togethers with friends, and as treat to share with teachers or family and friends. The oatmeal and peanut butter make them a hearty sweet treat- they seem almost like a meal in itself! :). I definitely suggest a glass of milk to go with it! These cookies are fully-loaded and so, so good!

I actually just made these as a “Back to School” treat for my kids- they will be a great pick-me-up to pack in their lunches for school. A special little perk to look forward to and enjoy while they are also trying to get their school groove back in gear. My kids always seem to have a little bit of an adjustment from the summer freedom of eating when you’re hungry to the school year scheduled eating times. My son, especially, eats so much more during the days at home than he can when he’s at school. I am glad this is filling- it will help him get through that first week!

I love being able to share the recipe for these super-popular cookies! My friend, Heather, introduced me to them so long ago~ and they have been a staple in our house ever since. I hope you enjoy them, too!! Here is a quick photo of the ingredients that we gather before we start (my kids love helping me make these- and now can actually make them all on their own).






4 teaspoons BAKING SODA

1/4 teaspoon SALT

2 teaspoons VANILLA



8-10 CUPS OATS (I suggest Quaker Old Fashioned Oats instead of Quick Oats)


12 OZ. M &M s

Scoop 1/4 cup for each cookie and drop on cookie sheet.

Bake at 350 degrees for 10-12 minutes. Depending on your oven, you may need to cook longer. The tops and edges should be golden brown when the cookies are done. Don’t overcook – the cookies will be dry.


Here are a couple of other photos that I took when I served them- I have these small and really great wicker trays from Society Social that I use when I want to serve the kids something and make it a little more special. Anything works- but I also love these trays because they can bring all of the dishes to the sink and dishwasher at once when it is time to clean up! That way, nothing is “accidentally” forgotten when they put away their dishes. 🙂 I used flowers and lots of colors for my daughter and then used red, blue, and yellow for my son. He probably doesn’t notice that I change it for him, because the cookies are all he really cares about! Ha! I can’t blame him!

You can also see how I used this recipe for a Fourth of July picnic here. It was one of my very first recipes I shared when I started blogging- so beware…it is equal parts funny and cringe -y (as my kids would say) to see the original posts on my blog. I love to see the progress this little blog has made over the years. Lol! Thank you for being here and for helping me grow! I really hope you love what you find here at The Party Wagon!

Also, these cookies freeze well! If you make more than you need, or if you just want to save some for later…you can freeze these for a few months. Just take out to thaw and then enjoy all over again! Cheers, Friends!



“goodbye Nursery, Hello School” Farm Party

Party Couture had the pleasure to host a “Goodbye Nursery, Hello School” play date party for her daughter Leona and her nursery friends.  The party had a farm theme, with girlie touches.  Butterflies were incorporated as their nursery class was called “Butterflies”. The party was held in the barn at an urban farm in central London. 

I love how they brought to life a green pasture full of animals and wildflowers. It was made to feel like a picnic setting with the cute lunch boxes, and they included crafts such as painting bird houses, flying butterflies, and garden windmills.

Be sure to check out ALL the little details on the amazing cake pops and desserts!

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Teddy Bear Picnic

The very talented Clair, of Calamity Cakes, recently hosted this adorable Teddy Bear Picnic for her daughter’s 6th birthday!  I love any type of picnic party, and this one is super sweet! Clair’s daughter loves teddies, and so this party theme was easy to decide!  With a topsy-turvy cake and loads of sweet treats~ along with fabulous activities and favors, this was definitely a day of fun for everyone!

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Beautiful Picnic Party

This beautiful party makes you feel as though you have stumbled upon the loveliest picnic in the countryside!  Cristina, of Nice Party, in Spain styled this party for a little girl who was celebrating her third birthday!  What a classic feel with girlie frills mixed with rustic elements- this party overflows with charm!

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Beautiful Spring Picnic

When I saw this gorgeous and simple (yes, simple!) picnic by Crissy of Crissy’s Crafts, I couldn’t wait to share it with you!  Crissy set up a sweet little picnic for her children and a few friends while the kids were out of school for spring break.  What a great idea for summer, too!  As simple as it is, it would make a fabulous party for a birthday!  Crissy made the details herself!

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Colorful Picnic Party

Summer is the perfect time to have a picnic- and I love the fresh, colorful spin on this Picnic Party submitted by BellaGrey Designs!  Her daughter- the birthday girl- is adorable and so are the details of her party!

The Menu Board is a nice, casual touch- and the lunches look so cute in their party package!

It is always more fun to eat veggies out of a cone!

And to be served lemonade from a glass jar that has been made party-ready just for you!

No picnic is complete without watermelon~

Fruit kabobs with pin wheels make for a fun treat, too!

As do yummy cupcakes with a whimsical topper-

The birthday girl and her guests had a silly time posing for the camera!  So cute!

The beautiful BIRTHDAY GIRL!

And each guest went home with a basket of birthday kisses…

Sweet party!  For more party photos see Bella Grey Designs~

Credits & Vendors

Party by BellaGrey Designs

Cupcakes by Cupcake Fabulous

Ant and Watermelon Cookies- The Sweetest Thing Cookies

Birthday Tutu by Fab Tutus

Birthday Shirt by Modern Frills Clothing

Hair Accessory by Sweetharts Shoppe