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Peanut Butter S’mores are a quick way to combine toasted marshmallow flavor with chocolate and peanut butter in a portable bar. They deliver a layered mix of crunchy graham, creamy peanut butter, melted chocolate, and a pillowy marshmallow center.
Many home bakers search for a simple, no-fuss dessert that uses pantry staples and a short bake time. This recipe fits summer gatherings, bake sales, or an easy treat when you want s’mores flavors without a campfire.
Why Make This Recipe
This recipe is straightforward and uses familiar ingredients like graham cracker crumbs, butter, sugar, and peanut butter. The dough presses into a crust that bakes into a sturdy base, while the marshmallow cream and chocolate give the classic s’mores profile.
Preparation time is minimal: you mix the dough, press layers, add a quick drizzle of melted peanut butter, and bake for about 30 minutes. It works well for casual entertaining because you can prepare it ahead and slice it into portions before guests arrive.
The recipe scales easily and requires only a square baking dish and basic kitchen tools. If you enjoy peanut-forward bakes, try pairing this with other peanut treats like these peanut butter oatmeal cookies for a themed dessert table.
How to Make Peanut Butter S’mores Bars
The method combines a cookie-like dough with crushed graham crackers to provide s’mores texture without assembling individual sandwiches. Pressing most of the dough into the pan creates a chewy base that holds the chocolate bars and marshmallow cream in place during baking.
Melting the peanut butter briefly before drizzling helps it spread evenly over the chocolate and integrate with the marshmallow layer. Rolling the remaining dough and pressing it on top forms a rustic lid that bakes to a golden finish, sealing the marshmallow filling.
Ingredients
- 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
Directions
- Preheat the oven to 350 degrees.
- Line a square baking dish with parchment paper.
- Beat the butter and sugars until fluffy.
- Add the egg and vanilla and mix well.
- Add the flour, baking powder, and salt and stir to combine.
- Stir in the graham cracker crumbs.
- Press 2/3 of the dough into the bottom of the baking dish.
- Press the chocolate bars on top of the dough.
- Melt the peanut butter for about 30 seconds in the microwave and drizzle it over the chocolate bars.
- Spread the marshmallow cream over the chocolate and peanut butter.
- Roll the remaining 1/3 dough onto a nonstick surface and peel it off to press it on top of the marshmallow cream.
- Bake for 30 minutes or until golden brown on top.
- Let cool for best serving results.
How to Serve Peanut Butter S’mores Bars
Cut the cooled bars into squares and serve at room temperature for the best texture. Warm slightly in the oven for 5 minutes if you prefer softened chocolate and marshmallow for a gooier bite.
Pair these bars with cold milk, coffee, or a glass of almond milk to balance the sweetness. Fresh berries or sliced apples work as a simple, fresh contrast on the side.
For casual gatherings, arrange bars on a platter with parchment paper and label them so guests know they contain peanut butter. A dusting of cocoa or a light drizzle of extra melted chocolate is all you need for a neat presentation.
How to Store Peanut Butter S’mores Bars
Store bars at room temperature in an airtight container for up to 3 days. If your kitchen is warm, keep them in the refrigerator to prevent the chocolate from softening; chill for up to 5 days.
For longer storage, freeze cut bars in a single layer on a baking sheet until firm, then transfer to a freezer-safe container with parchment between layers. Freeze for up to 2 months. Thaw in the refrigerator or at room temperature before serving to preserve texture.
To avoid dryness, wrap bars individually or layer them with parchment to prevent airflow. If refrigerated, bring to room temperature for 20–30 minutes before serving so the marshmallow becomes more tender.
Tips to Make Peanut Butter S’mores Bars
Follow this short intro sentence for quick improvements.
- Use room-temperature butter so the dough creams properly and traps air for a softer base.
- Crush graham crackers finely to ensure an even crumb texture in the dough.
- Press the dough firmly into the pan for a compact, even crust that supports the chocolate.
- Warm the peanut butter slightly; it will drizzle more smoothly over chocolate without breaking the layer.
- Spread the marshmallow cream with an offset spatula to get a thin, even topping that bakes uniformly.
- Bake until the top is golden brown; underbaking can leave the center too soft when cooled.
- Cool completely for clean slices; refrigerate briefly to speed up cutting if needed.
- Use high-quality chocolate bars for a better melt and richer flavor.
Common Mistakes to Avoid
A common error is pressing the dough too thin, which can cause the filling to leak or the bars to collapse. To avoid this, reserve the specified 1/3 of dough for the top and press the bottom layer firmly and evenly.
Another mistake is overheating the peanut butter. If you microwave it too long, it can separate and become oily. Heat in short bursts and stir between intervals to maintain a smooth drizzle.
Variations
If you want a nut-free option, substitute the peanut butter with sunflower seed butter and use dairy-free chocolate to accommodate allergies. For extra crunch, sprinkle chopped toasted peanuts over the marshmallow before adding the top dough.
You can also swap the Giant Hershey’s bars for chopped chocolate pieces or chocolate chips for a different melt texture. Just press them into the base the same way.
FAQs
Can I use homemade graham cracker crumbs?
Yes. Break whole graham crackers in a zip-top bag and crush with a rolling pin for fresh crumbs.
Can I freeze these bars?
Yes. Freeze in a single layer, then store in a freezer container for up to 2 months.
Is marshmallow cream the same as marshmallows?
No. Marshmallow cream spreads smoothly and bakes into a softer layer than whole marshmallows.
Can I make these in a larger pan?
You can, but adjust baking time; a larger pan will yield thinner bars and may bake faster.
What if my chocolate doesn’t melt fully?
If the bars cool with unmelted chocolate, reheat briefly in a warm oven (about 300°F) for a few minutes to soften the center.
Can I use natural peanut butter?
Natural peanut butter can be used, but it may require stirring before melting due to oil separation.
How do I get clean bar slices?
Chill the bars briefly and use a sharp knife warmed under hot water, wiping between cuts for clean edges.
Are these suitable for bake sales?
Yes. They hold up well and can be portioned into individual servings for sale.
Conclusion
This version of Peanut Butter S’mores captures classic campfire flavors in an easy baked bar you can make year-round. For a tested source and the original inspiration, see the full Pinch of Yum Peanut Butter S’mores Bars recipe.