Chocolate Oreo & M&M Cereal Bars

Decadent, chocolate cereal bars with Oreo cookies and M&M's! What a perfect picnic food!
close up Chocolate Oreo & M&M Cereal Bars on a white cake holder
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Chocolate Oreo & M&M Cereal Bars on a white cake holder

It’s high time for another cereal bar recipe! This one is Mike’s favorite and you would think it was mine as well, due to all the chocolate but I have to admit it, I’m a Golden Graham girl completely. My Oreo & PB Cup Golden Graham Cereal Bars are my absolute favorite, with these coming in a close second.


I used Krave chocolate cereal in these beauties for a delightful chocolate crunch. Then of course, I love to add in extra goodies, because let’s face it, Oreo’s and M&M’s make everything better.

Chocolate OreoMandMCerealbars

I might have been a little obsessed this summer with cereal bars.

I’ve made:

My Golden Graham Oreo & Peanut Butter Cup Bars. Oooh yah. Sooo good.


M&M S’mores Cinnamon Toast Crunch Bars. My second favorite cereal!


And my Rolo Cinnamon Toast Crunch Bars. Again. Caramel and cinnamon toast crunch? Wowza.

So you have four recipes to choose from, pick the one that you love the best, or heck, just play around with a new combination!

Happy Baking! (er, well microwaving?)

Love you more than chocolate,


Chocolate Oreo And M&M Cereal Bars

Decadent, chocolate cereal bars with Oreo cookies and M&M’s! What a perfect picnic food!
5 from 1 votes
close up Chocolate Oreo & M&M Cereal Bars on a white cake holder
Prep Time
10 minutes
Cook Time
2 minutes
Total Time
12 minutes
Karlynn Johnston


  • 8 cups of your favorite chocolate cereal
  • 5 1/2 – 6 cups of miniature marshmallows
  • 1 cup Butter extra for greasing pan
  • 1/2 teaspoon Vanilla
  • 1/2 cup of chopped Oreo’s
  • 1/2 cup of mini M&M’s


  • In a large microwave safe bowl, heat the marshmallows and butter in the microwave, 30 seconds at a time until melted and smooth. (more marshmallows make a stickier bar, so use 5½ or 6 cups accordingly.)
  • Remove from the microwave and stir in the vanilla.
  • Let cool slightly to prevent the chocolate from melting too much and then stir in the cereal, Oreo’s and the M&M’s.
  • Press into the bottom of a well greased 9×13 pan.
  • Let set and then slice to serve!

Nutrition Information

Calories: 227kcal, Carbohydrates: 23g, Protein: 1g, Fat: 14g, Saturated Fat: 8g, Cholesterol: 31mg, Sodium: 230mg, Potassium: 63mg, Fiber: 1g, Sugar: 12g, Vitamin A: 700IU, Vitamin C: 4mg, Calcium: 79mg, Iron: 3.5mg

All calories and info are based on a third party calculator and are only an estimate. Actual nutritional info will vary with brands used, your measuring methods, portion sizes and more.

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Karlynn Johnston

I’m a busy mom of two, wife & cookbook author who loves creating fast, fresh meals for my little family on the Canadian prairies. Karlynn Facts: I'm allergic to broccoli. I've never met a cocktail that I didn't like. I would rather burn down my house than clean it. Most of all, I love helping YOU get dinner ready because there's nothing more important than connecting with our loved ones around the dinner table!

Learn more about me

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Reader Interactions

Comments & Recipe Tips Share a tip or comment!

  1. Cheryl Clyne says

    Your kids must feel so lucky to be your taste testers!

  2. The Kitchen Magpie says

    NICE! I might have to steal your idea lol!

  3. Candace Calkins says

    Krave is pretty popular in our house. Chocolate Cheerios are surprisingly good too. I like to make what I call Garbage Bars. Whatever’s in the cupboard that the kids wouldn’t eat, or those annoying boxes with like a half a serving left, that’s how I get rid of it.

  4. The Kitchen Magpie says

    Yes, they do! What’s your favorite chocolate cereal? What’re you going to use for them?

  5. The Kitchen Magpie says

    AW thanks! I love any and all praise 😉

  6. Helen Richards says

    You post the coolest things to make! Love it!

  7. Candace Calkins says

    Oh boy….these need to be made in my kitchen, and soon 🙂

5 from 1 vote (1 rating without comment)

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