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Peanut Butter S’mores Bars

Sometimes I just can’t stop thinking about dessert. Sometimes, as in 365 days a year.

I don’t stand a chance focusing on an-ee-thing for one second when I have images of buttery graham cracker cookie dough layered with chocolate, peanut butter, and marshmallow cream running through my brain.  And drool running down my chin.  And legit chocolate stains on my white spring jacket.  Hmph. So much for being fresh and cute.

S'mores bars layered in between marshmallow fluff, chocolate, and a graham cookie base in two photos side by side.

I’ve thought of these Peanut Butter S’mores Bars at least 7 times today and it’s been a week since I actually made them.

NO! Don’t arrest me just because I withheld this recipe from you for one week. I have excuses. I’ve been crying, eating chocolate chips and watching World Down Syndrome day videos.  I’ve been updating my Facebook timeline stuffs.  Totally essential.  I’ve been smooshing my face into this sweet potato joy like, once every hour.  I’ve been releasing my food photography eBook – Tasty Food Photography!   So there.

No, you’re right. There’s really no excuse. It’s a crime that I withheld such a life-changing recipe for even ONE HOUR, much less 5 days.

I’m…sorry?

Make them tonight, tomorrow, and forever, and I bet you’ll be able to forgive and forget.

Me, not the bars.

One s'mores bar layered in between marshmallow fluff, chocolate, and a graham cookie base.

You don’t seriously think you can forget these babies, do you?

We have a new S’Mores Bars recipe! Check it out here.

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A picture of Peanut Butter S’mores Bars

Peanut Butter S’mores Bars


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 20 reviews

  • Author: Pinch of Yum
  • Total Time: 1 hour 5 minutes
  • Yield: 12 1x

Description

These s’mores bars have peanut butter layered in between marshmallow fluff, chocolate, and a graham cookie base. Just like s’mores!


Ingredients

Scale
  • 1/2 cup butter, softened
  • 1/4 cup packed brown sugar
  • 1/2 cup sugar
  • 1 egg
  • 1 teaspoon vanilla
  • 1 1/4 cups flour
  • 1 teaspoon baking powder
  • 1/4 teaspoon salt
  • 6 graham crackers, crushed into fine crumbs
  • 2 Giant Hershey’s milk chocolate bars, 7 ounces each
  • 1 jar marshmallow cream, 7 ounces
  • 1/2 cup peanut butter


Instructions

  1. Preheat the oven to 350 degrees. Line a square baking dish with parchment paper.
  2. Beat the butter and sugar until fluffy. Add the egg and vanilla and mix well. Add the flour, baking powder, and salt. Stir in the graham cracker crumbs.
  3. Press 2/3 of the dough into the bottom of the baking dish. Press the chocolate bars on top of the dough. They should make an even layer in an 8×8 pan. Melt the peanut butter for about 30 seconds in the microwave and drizzle it over the chocolate bars.
  4. Spread the marshmallow cream over the chocolate and peanut butter.
  5. Roll the remaining 1/3 dough onto the chocolate foil wrappers (or some other nonstick surface). When you’ve made an even square, gently peel it off and press it on top of the marshmallow cream.
  6. Bake for 30 minutes or until golden brown on top. Let cool for best serving results (see notes).

Notes

For best cutting and serving results, i.e. the least amount of gooey mess, let cool 12 hours (I let mine cool overnight). Remove parchment paper and slice with a knife, wiping it down between each slice to remove the lovely mallow fluff.

I baked for 30 minutes and the edges got a teeny bit dry. The non-edge pieces were perfect, though. If your oven runs hot (like mine) I’d go for closer to 25 minutes bake time.

I used crunchy peanut butter!

  • Prep Time: 5 mins
  • Cook Time: 1 hour
  • Category: Dessert
  • Cuisine: American

Keywords: peanut butter smores bars, smores bars, s’mores dessert bars

Thanks to Deea from Sprinkle Some Sunshine for the recipe inspiration!

You guys.  It’s the weekend!!!!!!!!!!!!!!  <- I promise to never do that again.

Whatever you do this weekend, DON’T SEND ME A PAN OF THESE BARS.  Don’t do it.  No, really.  Don’t.

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104 Comments

  1. Pinch of Yum Logo

    These bars are insanely delicious. They are so rich and the peanut butter is the key ingredient to make them “next level” with the sweet salty combo. This is a keeper!! My family loves all the pinch of yum recipes I try. Thanks for sharing your food creations with all of us!

  2. Pinch of Yum Logo

    YUM. My kids and I absolutely loved these bars. The cookie dough with crumbled graham cracker is delicious and the other elements require no prep! My 8″ square baking pan is a bit tapered, so the XL Hershey’s bars weren’t a perfect fit. I’m thinking about buying a new square pan just for these bars.
    I jumped the gun and cut into them about 3 hours after baking and there was some marshmallow spillage. Next time I will try to be more patient 🙂

  3. Pinch of Yum Logo

    This is seriously dangerous. Even the dough is so good that I may or may not have run out before I finished the top. We ended up having Reese’s PB cups on hand and used those in place of the Hershey’s bars and would recommend that too. 11/10

  4. Pinch of Yum Logo

    AMAZING BARS! I’ve made these 3 times this summer they are always a hit and people ask for the recipe!

  5. Pinch of Yum Logo

    Great recipe. Made these for a coworker birthday, and was really impressed with how they turned out. Easy to make, but spreading marshmallow fluff is a little tricky because it’s so sticky. I have thought about them every day since.

    Will definitely make again. Thank you.

  6. Pinch of Yum Logo

    these were fantastic. I. made them. GF with a box of Pamela’s graham crackers and 1/4 tsp. xantham gum. added to own GF. flour mix. Ratio of chocolate, marshmallow, and graham was amazing. I wasn’t sure about PB. but it was a nice and not overwhelming note that I would def include again.

  7. Pinch of Yum Logo

    These are so delicious!! I had to change a few things as we were at a vacation rental, but they still came out amazing. We only had chocolate chips and no parchment paper to make the top layer. I simply blobbed on some of the topping and pushed it down at the end and it was great! The chocolate chips didn’t melt all the way but it was still so tasty! I will definitely make this again!

  8. Pinch of Yum Logo

    These were great! I let them set for 10 min after I took it out of the oven – then put it in the freezer for an hour. They set perfectly!

  9. Pinch of Yum Logo

    Hi your S’mores are very moorish and in Australia we do not have marshmallow cream so I justness used giant marshmellows cut into thirds and a light arnotts tea cookie as there are no graham crackers.
    Very well received by all. Thank you as always for yourself and your teams work.
    Meredith in Oz but grew up in the north woods of WI

  10. Pinch of Yum Logo

    I’m going to make the bars this week for my grandchildren and embarrassed to say this this is my first time making graham cracker crumbs. Do I use 6 sheets with 4 small crackers to a sheet? Sorry to be so dense.

  11. Pinch of Yum Logo

    Hi Lindsay,

    I made these hoping to find a recipe to make each year for my daughter’s birthday. These are so yummy, they are definitely a keeper!

    Here’s a couple of things I learned along the way. It would be helpful if you could give the weight of the graham crackers or approximately how many cups it works out to. There is confusion regarding sheets vs crackers, and when I found the dough was quite soft, I went searching for conversion information to see if I did it correctly. For me, 6 crackers worked out to just under 1/2 a cup. That would also be useful to know if you only have pre-crushed crackers on hand.

    Mistakenly but luckily I put the peanut butter on before the chocolate. I had to fight with the marshmallow cream quite a bit, and I think I would have had a big mess if I had put it on top of the peanut butter. The chocolate’s flat surface saved me. Maybe I need to warm the marshmallow cream a bit. I’ll try it next time.

    I didn’t get the same depth on the pretty marshmallow cream layer. Next time I’ll use at least 1.5 jars.

    Overall, this is the only recipe I tried in making s’mores bars, and it’s the only recipe I’ll ever need to try. So good! Thanks!

  12. Pinch of Yum Logo

    I love how your website has super healthy foods and super amazing fattening sweets. It makes me laugh but that is so my style. I love eating healthy. Any extra calories I can cut out I will but dang those sweets. They get me every time.