These peanut butter s’more bars will immediately have you asking for some more! Traditional s’more flavors of chocolate and marshmallow are combined with peanut cups for one amazing bar.
Not Your Average S’mores
Okay so we’ve all tried s’mores before. And if you haven’t, stop reading and go make yourself a s’more. I mean maybe even go all out and try setting up an entire DIY s’mores bar.
For the rest of us, there is just something magical about the three traditional flavors of a s’more – graham cracker, chocolate, and marshmallow.
These peanut butter s’more bars take those flavors up a notch with a graham cracker cookie crust, chocolate, marshmallow, and peanut butter cups.
Yep, I said peanut butter cups. S’mores with peanut butter cups are a whole different experience (an amazing one!) than regular s’mores and these s’mores bars are a play on that.
They may be even better than these cookie s’mores.
And they’re so easy to make! Mix, top, bake. Eat. Then try your best not to eat the entire pan.
If you’re looking for something with peanut butter and chocolate but not marshmallow, try out these yummy peanut butter brownies, they’re also delicious!
This is more about the method of cooking than the measurements!
- Marshmallow fluff – you can also use marshmallow creme but don’t try to use melted marshmallow, it won’t work the same
- Graham cracker crumbs – either the store-bought graham cracker crumbs or graham crackers turned into crumbs in a food processor work great
- Chocolate – we always use Hershey Chocolate Bars and Reese’s Peanut Butter cups because they melt well and are predictable. You can try other chocolate brands but no guarantee they’ll melt the same.
One of the things we love most about this recipe is how easy it is. It make look impressive and delicious but it doesn’t take too long to make!
1 – Make the dough
Start by getting your oven and dish ready. Preheat to 350 degrees and add piece of foil or parchment paper to a 9×13 baking dish – make it long enough so it hangs over the ends.
Then it’s time to make the graham cracker cookie dough.
Similar to our pecan pie bars, you’re going to cream together the butter and sugar. Then add in your eggs and vanilla to finish off the wet ingredients.
In another bowl, you’ll mix together the remaining dry ingredients – flour, graham cracker crumbs, baking powder, and salt.
Then you add the dry ingredients to the wet and mix until combined. Dough complete.
2 – Make the bars
Now it’s time to turn that graham cracker cookie dough into peanut butter s’more bars!
Divide the dough in half and press half the dough down into the baking dish to create the bottom of the bars.
Then top your crust with the peanut butter cups and fill in the spaces with pieces of the chocolate bar.
Once your chocolate is all in, spread the marshmallow fluff over the chocolate to create the ooey gooey part of the s’mores bars.
Finish the bars off by adding the second half the graham cracker cookie dough on top of the marshmallow coating. This will finish the sandwich, kind of like the second graham cracker on top of a traditional s’more.
3 – Bake and enjoy
Now all that’s left is tossing those babies into the oven for 30-35 minutes and letting them cook until lightly browned.
Then enjoy by the pan full. Or at least that’s what I do!
Line the baking dish with parchment paper, with a bit of extra on the ends, so that when your peanut butter s’more bars are done, you can simply pull the parchment paper out and cut out of the dish.
Flatten the remaining dough before you put it on top then just patch it together to cover most of the marshmallow. It doesn’t need to be totally covered.
Cool completely before cutting into the bars. I know you’ll want to eat them right away but they need to cool or you’ll burn your little tongue on the marshmallow and they may fall apart.
I don’t recommend freezing these because the marshmallow fluff can change texture after freezing and thawing. You can freeze the graham cracker cookie dough if you want to make them even easier in the future!
Yes, but they may not end up exactly the same. But we’ve found it fun to experiment with different things that still melt well like Rolos.
These bars can be kept in an airtight container for up to a week, but they likely won’t last that long!
More Easy Desserts
- Banana pudding cupcakes
- Pumpkin cheesecake bars
- Ginger molasses cookies
- Mini cheesecake
- 7-layer bars
- Pumpkin chocolate chip cookies
Peanut Butter S'more Bars
- 1 cup butter at room temperature
- ½ cup brown sugar
- 1 cup sugar
- 3 large eggs
- 2 tsp vanilla extract
- 2 ⅔ cups flour
- ⅓ cup graham cracker crumbs
- 2 tsp baking powder
- ½ tsp salt
- 2 Hershey milk chocolate bars
- 12 Reese's Peanut Butter Cups
- 1 ½ cups marshmallow fluff
- Preheat oven to 350 degrees.
- Line a 9x13 baking dish with parchment paper or aluminum foil
- In a large bowl, cream together butter and sugar until light.
- Add eggs and vanilla and beat.
- In a large bowl, whisk together flour, graham cracker crumbs, baking powder, and salt.
- Add dry ingredients to butter mixture and mix on a low speed until combined.
- Divide dough in half and press half of the dough into an even layer on the bottom of the prepared baking pan.
- Place Reese's peanut butter cups in rows on the dough then fill in the gaps with Hershey chocolate bar pieces.
- Spread marshmallow fluff on top of the chocolate, making sure to cover all of it.
- Place remaining dough on top of the marshmallow in a single layer.
- Bake for 30 to 30 minutes or until lightly browned.
- Allow bars to cool completely then cut into bars.