Old Fashioned Monster Cookies

filed under: Chocolate Cookies on January 15, 2015

This Old Fashioned Monster Cookie recipe is inspired by a love of eating. I also have Soft Batch Monster Cookies you will love!

Old Fashioned Monster Cookies!

I wish I had some awesome story about how my grandma made them in 1942, but yeah. It was just me tinkering away in my kitchen and putting together what I envisioned an old fashioned cookie would be like.

Old Fashioned Monster Cookies!

Seems like that today cookies are all ooey gooey and soft and loft-house style and not the crispy flakey cookies I remember as a kid.

I cannot believe I am old enough to have eaten old-fashioned food.  Old enough to want to eat old-fashioned food.

It makes sense though.  My favorite TV show is Murder, She Wrote.

Old Fashioned Monster Cookies!

Recipe based on Oatmeal Cranberry Cookies.

Tips for Success:

These cookies spread out considerably so I would press them flat(er) as you set them on the baking sheet.

If you want a higher dough to chip ratio (less chips, more cookie dough), cut the chocolate chips out and decrease peanut butter to 1/2 cup.

Make sure you cream the shortening and sugars until fluffy.  I have used both the whisk attachment and paddle and both seem to work well.

I love making these cookies into “giant” cookies, about 6-inches across.  They hold up very well and kids are absolutely giddy at the idea of the huge cookie.

Old Fashioned Monster Cookies!

These cookies are best served right out of the oven with a tall glass of cool milk! #da

Old Fashioned Monster Cookies
Prep Time
10 mins
Cook Time
12 mins
Total Time
22 mins

These Old Fashioned Monster Cookie recipe is inspired by a love of eating.

Course: Dessert
Cuisine: American
Keyword: Old Fashioned Monster Cookies
Servings: 12 cookies
Author: Amanda Rettke--iambaker.net
  • cups all-purpose flour
  • 1 cup peanut butter chips
  • 1 cup M&M's
  • cups whole oats
  • ¾ cup granulated sugar
  • ¾ cup brown sugar
  • ¾ cup shortening
  • 1 teaspoon McCormick® vanilla
  • 2 large eggs
  • 1 teaspoon McCormick® cinnamon
  • 1 teaspoon salt
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • ½ cup semi-sweet chocolate chips
  1. Heat oven to 350°F.

  2. In medium bowl sift flour, baking soda, baking powder, salt and cinnamon. In stand mixer or large bowl, cream together shortening, brown sugar, and white sugar until fluffy.

  3. Add eggs and vanilla. Combine well.
  4. Add flour mixture to wet ingredients and stir until just combined. Then add oats, M&M's, peanut butter chips and chocolate chips.

  5. Use ¼ cup and scoop onto cookie sheet, you should get about 6 per sheet.

  6. Bake for 8-12 minutes.

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  • Sheena @ Tea and Biscuits says:

    Your cookies look fabulous, my boys would love them! 🙂

    • Amanda says:


  • Jocelyn (Grandbaby cakes) says:

    Girl there is no need to have a story other than “I love to eat” when you make cookies as perfect as these.

    • Amanda says:

      Thank you. Yes. 🙂

  • Alice @ Hip Foodie Mom says:

    your kids will be baking these .. and your kids’ kids. . so don’t fret . . YOU will be the awesome story that your kids tell to their children and pass down your fabulous recipes. . monster cookies and all!!! 🙂

  • Kimberly | Chic & Sugar says:

    I love that your favorite show is Murder, She Wrote! Ha ha. These cookies look delish. The tips for success are always so helpful!

  • Allie | Baking a Moment says:

    Perfection! Thick, hearty, and wonderfully old-fashioned 😉

  • Dorothy @ Crazy for Crust says:

    I’ll be old fashioned with you – we’re monster twinsies today. Love these – they look perfect!

  • Amy @Very Culinary says:

    I’ll take that entire stack, please!

  • Kerry at Kerry Cooks says:

    These cookies look soo good Amanda! Oats improve any cookie, I feel. And I agree on Murder she wrote – awesome show!

  • Laura @ Laura's Culinary Adventures says:

    I wish my grandmother had made cookies like these!

  • Jen @ Baked by an Introvert says:

    Old fashioned just means they’re delicious enough to stick around through the years. Own it! They’re perfect!

  • mila furman says:

    Lol Amanda…Murder She Wrote…I won’t judge 🙂 I don’t think I remember ever eating these cookies…but they look fabulous and a fun weekend project for me and the munchkin.

  • Monica says:

    I didn’t grow up eating many desserts or cookies and I remember the first time I made and ate monster cookies. I didn’t think I would like them that much but I was so wrong. Such an amazing cookie and m&m’s rule in baked good, it turns out. : ) Your version looks great and definitely worthy of the ‘old-fashioned’ title because to me, it means good stuff!

  • Sommer @aspicyperspective says:

    Cookie monster approved for sure! Scrumptious!

  • ATasteOfMadness says:

    I love monster cookies! Yours look divine!

  • CakeSpy says:

    You inspire as usual. I love the nostalgia…and I just love the simple COOKIE-ness of these sweet treats.

  • Melanie @ Carmel Moments says:

    Always a favorite. Nom..nom…
    Hope you had a great weekend!

  • Ami@NaiveCookCooks says:

    Amanda sometimes old fashioned are the best!! Love the addition of peanut butter chips!!

  • Sarah says:

    These cookies look amazing! Thick and filled with M&M’s ~ the cookie monster would be proud of these Monster Cookies!

  • Julia @ Sprinkled With Jules says:

    I love monster cookies! Sometimes a story isn’t necessary, especially when you have photos like yours!

  • Phi @ The Sweetphi Blog says:

    I’ll go ahead and pretend with you…I’ll do whatever…because these cookies are one of my faves!!

  • Kelly says:

    Love monster cookies! These are gorgeous and perfectly old-fashioned!

  • Thalia @ butter and brioche says:

    I have so many nostalgic childhood memories of monster cookies.. these look awesome and I wish I had a couple to indulge in right now!

  • Becky says:

    This is a different version of monster cookie than I’ve been using for years. My recipe has a touch of corn syrup and no flour – only oats so they are nice and chewy! We love them and make them every Christmas!

  • Cynthia says:

    Made these tonight & they are very good!

  • Hiubert says:

    I made these today using butter instead of shortening. They turned out thin, crispy, and soooo good! I used Resee’s Pieces instead of peanut butter chips and added 1/2 cup of crushed pretzels because I didn’t have any salt. Awesome recipe and super helpful baking blog…thank you!!

  • I Am Baker Logo

    Brand new recipes that people find kinda acceptable.