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BOO! Chocolate Peanut Butter Bars. You don’t need to be a professional baker to make these deliciously easy homemade Halloween treats. These spooky bars require no oven time, just 7 ingredients, are made without processed sugar, and take almost no effort to make. They’re fun to make no matter your age and you really can’t mess them up!
BOO! I’m so excited! I just love these bars! I make these fun, easy peanut butter bars almost every October. We really love them – both their deliciousness and just how fun and easy they are to create.
This is one of those years where I’m really leaning into the fun Halloween recipes. For whatever reason, there are years when I don’t share as many spooky-themed recipes. But this year, I’m loving every minute. It’s an excuse to have fun and just let the kid in me shine. I think we all need to allow the kid in us to shine a little more these days!
As mentioned, these are made using 7 ingredients, so they’re pretty darn easy. In fact, they’re very similar to my mom’s special K-bar recipe, just made in a fun way for Halloween.
You’ll need honey, maple syrup, creamy peanut butter (I prefer to use organic, no sugar added), chocolate, and white chocolate. That’s it, and no added sugar aside from what’s in the chocolate.
To begin with, grab some corn flakes and brown rice krispies. I love the texture, crunch, and chew of these cereals together. Add the corn flakes and brown rice krispies to a bowl along with the creamy peanut butter.
Boil the honey and maple together. I use honey and maple syrup together for added flavor and the best texture. Boil the mix for 2 minutes, then pour it over the bowl full of cereal and peanut butter. Mix everything together until all is evenly coated.
Spread the mix out into a baking dish, then throw it in the fridge while you melt the chocolate.
For the peanut butter, I recommend using an organic, no-sugar-added peanut butter – as in just peanuts and sea salt. No Jiff, or any other kinds of no-stir peanut butter that contains oil and/or sugar. You just want natural peanut butter. This will give you the best flavor and texture. But I mean, of course, if all you have is Jiff or Skippy, it all works!
Melt the chocolate, then pour it over the bars and spread it out in an even layer.
Take the melted white chocolate (use high quality, trust me it makes a difference) and dollop it over the chocolate in teaspoon and tablespoon sizes. Next, use a skinny skewer or the end of a skinny spoon and gently pull the white chocolate down to create a “ghost” shape. Then use mini candy eyes or sprinkles for the eyes.
Then just chill and cut the bars into awkward-shaped.
The secret to success with these bars is to not stress about making them perfect. The more imperfect the spookier they look.
Over the years I’ve learned to love and embrace the “imperfect” look. The awesome thing about Halloween treats is that the more imperfect they look, the better.
It’s all about that messed up, spooky vibe, so embrace the imperfections here. No one ghost should look like another.
You can pack them up and take them to the school Halloween party. Or serve them up at your adult-filled Halloween bash.
Whatever route you go, these ghostly bars will be loved.
Looking for other Halloween cookies? Here are my favorites:
“I put a Spell on You” Poison Apple Martini
Black Widow Peanut Butter Bars
Hocus Pocus Spellbook Brownies
BOO! Chocolate Peanut Butter Bars
Milk Chocolate Stuffed Jack-O’-Lantern Cookies
Lastly, if you make these BOO! Chocolate Peanut Butter Bars, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!
Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.
This looks super cute ! How do you get the peanut butter to be liquid like on your stories today is it melted in the microwave like you melt the white chocolate for this recipe
Thanks
Hey Sarah,
I used a natural peanut butter, just peanuts and salt, so it tends to be a little more on the runnier side:) Please let me know if you have any other questions, I hope you love the recipe! xT
Wow, they look good! Perfect for the season. Thanks Tieghan! Jesus loves you and saves (John 3:16)!
Thanks Dave! I hope you love the recipe!! 👻
These sound so easy and delicious .. of course I’ll be making them soon 👻
Hey Evangelina,
Fantastic!! So glad to hear that you enjoyed this recipe, thanks so much for trying it out! Have a great weekend! 👻
Question, what are brown Rice Krispies? Coco Krispies? These look adorable! 👻
Hey Vicki,
Brown Rice Krispies are just made with brown rice, you should be able to find them at your local grocery store:) Please let me know if you have any other questions!! xTieghan
Basically these are a scotcharoo. Jif peanut butter has one ‘f’ in it.
Scotcharoos have butterscotch and no corn flakes…just saying. 🙂
You’re wrong about the ingredients in a scotcheroo on top of being a b!tchy spelling Nazi.
“F@ck off, Connie” has exactly the right amount of letters, since we’re apparently having a spelling bee over here.
Thanks! I hope you love the recipe Connie, let me know if you give it a try! xx
Your disordered eating is showing. Sugar isn’t dangerous, sweetie
A lot of people can’t eat refined sugar for many reasons, and it really isn’t that good for you. Don’t be a bully or project your own insecurities on others.
And your mental disorder is showing.
Tell that to a diabetic, you rude, uninformed, delusional trolling bully.
Do some research. Your complete ignorance is showing, as well “honey”. Refined sugar is dangerous. It causes blood sugar spikes, obesity (maybe that’s one of your many problems) and is linked to increased rates of many types of cancers and infections. Move along now.
Lmao it’s Teighan who has the eating disorder
She looks fine to me. Unfortunately naturally thin women evoke a lot of envy and hate from people like you and Sugar fattie.
Lmao it’s T who has the disordered eating.
You’re repeating yourself like a babbling fool, Kelsey.
It’s probably the poor quality comment form on this site.
More like the poor quality of the brain dead trolls on this site. They love to spew hate, but can’t form a legible or literate sentence, or perform a simple function without screwing it up. Most likely due to low IQ caused by multi-generational inbreeding.
Do you think swapping for almond butter in this recipe or your other PB bars could work?
Hey Carissa,
Totally, any nut butter that you enjoy would work here! Please let me know if you give this recipe a try, I hope you love the recipe! xT
These look delicious…..i would double check the math on the calories per serving…by my calculations they would be closer to 300kcal/serving if the recipe makes 24.
Yes was hoping they aren’t 1642 calories a serving!!!!
Hi Cindy,
Thanks so much for sharing!! I always recommend that if the nutritional information is important to you, you use your own personal calculator. Ours is automatic and controlled by google. It’s not something we’d prefer to be using. We are required to. I’m sorry for the trouble, we do our best! Hope you enjoy the recipe! xT
What cereal could I substitute to make gluten free please?
The cereals in Tieghan’s recipe are gluten free. Corn and brown rice are gluten free, but check any cereal package you would buy.
Thanks Peggy!
Hi Amy,
Brown Rice Krispies are already gluten free and there are plenty of gluten free options of corn flakes at your local grocery store:) Please let me know if you have any other questions! xT 👻
So cute! I love the cutesy side of Halloween sweets. 👻 xx
Thanks so much Kelly-Jane!! 👻
I am anxious to try them but I think the calorie count may be off per serving? 1642 per serving is listed.
Hey Shelley,
I always recommend that if the nutritional information is important to you, you use your own personal calculator. Ours is automatic and controlled by google. It’s not something we’d prefer to be using. We are required to. I’m sorry for the trouble, we do our best! Hope you enjoy the recipe! xT
If you don’t want to use the honey and maple syrup, how much sugar (and what kind) would you substitute?
Hi Deborah,
You are going to want to stick with the honey and maple syrup for this recipe! Otherwise, you will have to use karo syrup, this recipe won’t work with granulated sugar. Please let me know if you have any other questions! xx
I have no corn flakes or Rice Krispies on hand. However, I have tons of Cheerios. Do you think they would work?
Well loved by all! I did cut down on the maple syrup so they were not as gooey, which was a good choice. They are super sweet so next time I will omit the brown sugar sub. I had trouble not picking at these all day! So yummy, will make again!
Thank you so much Danielle! I am really glad you enjoyed this recipe! xTieghan
These tasted great, but the bottom layer didn’t ‘stick’ to the chocolate completely. Chunks fell off when trying to place the pieces into a different container. As another reviewer mentioned, my chocolate also cracked when cutting.
Thank you so much Sara! I am really glad this recipe turned out so well for you! xTieghan