5-Ingredient Peanut Butter Cereal Bars

Peanut Butter Cereal Bars

Here is a stupid-easy 5 ingredient treat that brings back all the nostalgic 90s cereal bar vibes back into play — Peanut Butter Cereal Bars!! 

Using simple ingredients and spending minimal time in the kitchen, these delicious bars are perfect for an on-the-go snack or meal, a tasty breakfast bar, or a lovely treat alongside any meal! 

Growing up, one of my friend’s mom’s used to make cereal bars like this (similar recipe here), and I loved it!! But, with my newfound love of Magic Spoon Cereal, I made my own high-protein, lower sugar rendition with these Peanut Butter Cereal Bars. If you haven’t yet tried Magic Spoon Cereal, it’s a great high protein, low carb cereal that tastes just as good as what you grew up eating! It’s honestly kind of stupid how good it tastes!! I love all of their flavors, but the peanut butter flavor is definitely at the top of my list!

I like to slice these into bars and keep them in my freezer. That way, they keep longer and are perfect for throwing in lunch boxes throughout the week or for after school snacks! Plus, they are even delicious frozen! 🙂

Peanut Butter Cereal Bars

Serves: 12 bars
5 from 1 vote
Prep Time5 mins
Chill Time1 hr


  • 1 cup Honey (or maple syrup)
  • 1 cup creamy, unsalted and unsweetened peanut butter
  • 2 tbsp avocado oil
  • 1 tsp pure vanilla extract
  • 1 box Magic Spoon Peanut Butter Cereal *you can use my code DEFINEDDISH for $5 off the variety pack


  • In a small saucepan over medium heat, combine the honey, peanut butter, avocado oil and vanilla. Whisk until well combined and smooth, about 4 minutes. Remove from heat.
  • Pour the peanut butter cereal in a large mixing bowl then pour in the peanut butter mixture. Carefully toss until the cereal is evenly coated in the mixture.
  • Line a 9x9 baking pan with parchment paper. Pour the cereal bar mixture into the pan. Using a rubber spatula, smooth so that it is in an even layer. Transfer to the fridge and let cool completely and harden, at least.1 hour before carving into squares.



  • Reply
    Donna Hultman
    September 29, 2021 at 6:30 pm

    Is a whole cup of honey/syrup really needed? Trying to keep sugar content down:(

  • Reply
    Sheila Johnson
    September 1, 2021 at 2:15 pm

    If I use cheerios or other cereal without its having peanut butter or peanut butter flavor, how much peanut butter should I use?

    • Reply
      September 2, 2021 at 5:36 pm

      you can leave it the same, will still be delicious and peanut butter-y!

  • Reply
    Heather Showalter
    March 21, 2021 at 4:02 pm

    could you use almond butter?

    • Reply
      March 21, 2021 at 4:54 pm

      yes for sure!

  • Reply
    March 17, 2021 at 3:54 pm

    Do you store these in the fridge or at room temp?

    • Reply
      March 18, 2021 at 8:23 pm

      you can do either, but I actually keep mine in the freezer!

  • Reply
    Courtney Befort
    March 14, 2021 at 4:26 pm

    THANK you for the suggestion of Magic Spoon cereal. I just ordered the variety pack and they are the BOMB!!!! Love knowing abt a fun, healthy cereal that tastes good!!

  • Reply
    March 13, 2021 at 7:52 pm

    5 stars
    I made these with a chocolate grain free cereal I found at Sprouts. So good! Thank you for sharing.

  • Reply
    March 9, 2021 at 8:22 am

    What is the size of the box of cereal? In case I wanted to switch out types. Thanks! Can’t wait to try these!

    • Reply
      March 10, 2021 at 4:13 pm

      When measured out, it’s about 4 cups of the cereal.

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