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Home » Recipes » Leftover Cereal Bars

Leftover Cereal Bars

February 15, 2024 by Ciara Attwell, Updated January 28, 2025

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Delicious snack bars made with just four simple ingredients. A great way to use up any leftover cereal that your kids no longer eat!

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Leftover cereal bars in a presented in a loaf tin lined with grease proof paper.

If your kids are anything like mine they will beg me to buy a certain cereal, eat half the pack and then never touch it again.

They’re also terrible for only eating half the options in those mini multipacks of cereal.

It drives me mad having so many half eaten boxes of cereal in my kitchen so I decided to use some of it up to make these tasty Chocolate Leftover Cereal Bars. The perfect snacks for kids!

Leftover cereal bar divided into eight bars shaped pieces.

Start off by melting peanut butter and honey in a jug in the microwave.

If you want to make these bars nut free then you can use Wow Butter.

Ingredients being mixed up in a glass Pyrex jug.

Add this to a bowl with leftover cereal. I used three different types of cereal. It really doesn’t matter what size of shape it is.

Ingredients being combined together in a mixing bowl.

Add it to a lined loaf tin and press down with the back of a spoon to make it as compact as possible.

Ingredients added to a lined loaf tin and pressed down with the back of a spoon to make it as compact as possible.

Pour on some melted chocolate and then pop into the freezer for at least 1 hour to firm up.

Melted chocolate added to the top and popped in the freezer to firm up.

It’s then ready to cut into slices and enjoy!

These bars will keep for several days in the fridge, perfect to pull out for an afternoon snack for kids.

If you liked this recipe you may also enjoy my No Bake Cornflake Bars

Or this collection of:

Airfryer Lunches For Kids

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Leftover Cereal Bars


★★★★★ 5 from 2 reviews
  • Author: Ciara Attwell
  • Prep Time: 5 mins
  • Cook Time: 1 hour
  • Total Time: 1 hour 5 minutes
  • Yield: 8 1x
  • Category: Snacks for Kids
  • Method: No Cook
  • Cuisine: No Cook
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Description

Delicious snack bars made with just four simple ingredients. A great way to use up any leftover cereal that your kids no longer eat!


Ingredients

  • 120g peanut butter
  • 75g honey
  • 90g cereal
  • 150g milk chocolate

Instructions

  1. Add the peanut butter and honey to a jug and melt in the microwave.
  2. Add the cereal to a large bowl, pour in the peanut butter and honey mixture and mix well.
  3. Line a loaf tin with parchment paper and transfer the mixture into this.
  4. Press down well with the back of a spoon to make it as compact as possible.
  5. Melt the chocolate and pour this over the cereal mixture.
  6. Freeze for at least 1 hour to firm up.
  7. Cut into 8 large slices or 16 smaller pieces.

Notes

These Cereal Bars will keep in the fridge for up to 4 days.

They can also be frozen for up to 2 months. They will defrost in half an hour at room temperature.

Love this Leftover Cereal Bars recipe? Leave us a review AND tag us in your photos and videos!

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Filed Under: Easy Snack Ideas For Kids, Egg Free, Recipes

Comments

  1. N. S. says

    March 2, 2025 at 11:43 pm

    I have made these many times whenever I had leftover cereal in the pantry. Great taste!

    ★★★★★

    Reply
    • Vicky says

      March 3, 2025 at 12:40 pm

      Great to hear! thanks for your comment, please feel to share your creations with us on social media, we love seeing them all.

      Reply
  2. Rach says

    December 1, 2024 at 8:04 pm

    Hi, can I substitute honey for maple syrup?
    And what can I use instead if Peanut butter or wow butter…does Nutella work? I’m rubbish at baking!

    Reply
  3. Janine Plonk says

    April 23, 2024 at 10:08 pm

    If they won’t eat it as cereal, do they eat it as cereal bars?

    Reply
  4. Kim Williams says

    February 23, 2024 at 10:26 am

    Planning to make these at the weekend with the kids!

    Do you think Weetabix would work well mixed in with the other cereals ??

    Ill let you know how they turn out.

    ★★★★★

    Reply
    • Vicky says

      February 23, 2024 at 11:35 am

      Cant see any reason why a bit of Weetabix mixed up the the other cereals wouldn’t work, definitely worth a try. We would love you to come back to us and let us know how they turn out.

      Reply

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Hi, I'm Ciara! I'm a food writer and cookbook author and I'm always looking for new ways to make food fun and interesting for kids! I specialise in fussy eating and share tips and tricks to get your kids eating better along with lots of family friendly recipes. Read More…

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