Reese’s S’mores Bars – Gooey Chocolate & Peanut Butter
on Jul 31, 2024, Updated Feb 12, 2025
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S’mores Bars include a peanut buttery graham cracker infused cookie-like crust, Reese’s cups, chocolate, and marshmallow all melted together into one incredible dessert. Quick, easy and delicious!
If you’ve never tried Reese’s S’mores Bars, you’re in for a delightful surprise! This dessert combines the beloved flavors of s’mores with the irresistible taste of Reese’s, making it a guaranteed crowd-pleaser. With just a few simple ingredients, you can whip up this treat in no time.
These bars are quick to prepare, ready to pop into the oven in just 10 minutes. The result is a gooey, rich treat that combines crunchy, creamy, and sweet in every bite. It’s hard to find anyone who can resist the deliciousness of these bars!
Table of Contents
Why You’ll Love This S’mores Bars Recipe
- Quick Prep: Ready for the oven in just 10 minutes, making them perfect for last-minute dessert cravings or when unexpected guests drop by. The simple assembly means even novice bakers can create something impressive.
- Perfect Texture: The bars offer an irresistible combination of crunchy graham crackers, gooey melted marshmallows, creamy chocolate, and smooth peanut butter that creates a symphony of textures in every bite. The layers meld together perfectly while maintaining their distinct characteristics.
- Versatile Treat: Perfect for any occasion, from casual family movie nights to elegant dinner parties. They’re equally beloved at summer barbecues, winter gatherings, or as an indulgent afternoon snack. They can be cut into different sizes to suit your needs.
- Nostalgic Twist: Combines two beloved childhood favorites – classic s’mores and Reese’s peanut butter cups – into one upgraded dessert that appeals to both kids and adults. It captures all the fun of campfire s’mores without needing an actual campfire.
🥜 If you want instant hero status with your kids, just show up with peanut butter s’mores bars — trust me on this one!
Recipe Ingredients
- Brown Sugar
- Granulated Sugar
- Egg
- All-Purpose Flour
- Baking Powder
- Graham Crackers
- Reese’s Cups — regular or fun-sized
- Chocolate Chips — milk chocolate or semi-sweet
- Marshmallow Creme
See the recipe card below for full information on ingredients and quantities.
How To Make Reese’s S’mores Bars
Step 1: Measure and gather the necessary ingredients. Preheat the oven to 350°F and line a 9-inch square baking pan with greased foil, letting the edges hang over.
Step 2: Beat butter and sugar until fluffy, then add the egg and vanilla. Mix in flour and graham cracker crumbs until combined.
Step 3: Press 2/3 of the dough into the pan, layer with Reese’s Cups, chocolate chips, and spread marshmallow creme on top. Cover with the remaining dough.
Step 4:. Bake for 25 minutes until golden brown. Cool in the pan for an hour, then remove using the foil edges. Let the bars cool completely before cutting with a sharp knife.
Recipe FAQs
I actually used Reese’s eggs and they were fabulous and very full of peanut butter. I think just about any type of Reese’s cup would work for this recipe!
Stick your dessert in the fridge before attempting to cut. I had to stick my bars in the fridge for an hour before cutting.
You should be good to go if you do this: Line an 9-inch square baking pan with foil (let the foil hang over all the edges so that you can use it to pull the bars out of the pan later) and grease the foil well.
If you don’t have graham crackers, digestive biscuits, vanilla wafers, or other crisp cookies can work as a substitute.
Expert Tips
- Chill Before Cutting: For cleaner slices, allow the bars to cool completely and chill in the fridge before cutting. This helps to cut through the marshmallows and chocolate cleanly.
- Get Creative with Add-ins: A small sprinkle of sea salt on top can enhance the flavors and balance the sweetness.
- Use a serrated knife: This helps to cut through the marshmallows and chocolate cleanly.
- Don’t Overbake: Keep a close eye on the bars while baking. Overbaking can dry out the crust and make the marshmallow layer too firm. Remove them from the oven when the edges are golden and the center is just set but still slightly soft.
- Layer Evenly: When spreading the marshmallow fluff and Reese’s cups, try to distribute them evenly across the crust. This ensures every bite has the perfect balance of gooey marshmallow and creamy peanut butter.
How To Serve Reese’s S’mores Bars
Serve Reese’s Stuffed Peanut Butter S’more Bars warm with ice cream, a drizzle of hot fudge, and a dollop of whipped cream for a decadent treat.
They are also delicious on their own, enjoyed straight from the pan. For a party, cut them into bite-sized squares and serve on a dessert platter.
Storing Leftover S’mores Bars
To keep your Reese’s S’mores Bars fresh and delicious, store them in an airtight container at room temperature for up to 3 days. If you prefer a firmer texture or need them to last longer, refrigerate them for up to a week.
For extended storage, you can freeze the bars for up to 2 months — wrap them individually in plastic wrap and place them in a freezer-safe bag or container.
When ready to enjoy, thaw them at room temperature or briefly warm them in the microwave for that gooey, just-baked texture.
More PB Dessert Recipes To Consider
Peanut Butter Cookies
Best Peanut Butter Chocolate Chip Cookies
Peanut Butter Cookies
Hershey Kiss Cookies
Peanut Butter Cookies
Peanut Butter Nutella Cookies
Dessert Recipes
Life-Changing Peanut Butter S’mores Bars
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Reese’s S’mores Bars – Gooey Chocolate & Peanut Butter
Ingredients
For the Crust
- 1/2 cup butter, softened
- 1/4 cup packed brown sugar
- 1/2 cup sugar
- 1 egg
- 1 teaspoon vanilla
- 11/4 cups flour
- 1 teaspoon baking powder
- 1/4 teaspoon salt
- 6 graham crackers, crushed into crumbs
- 9-12 regular sized Reese’s Cups, or the equivalent if using fun size
- 2/3 cup chocolate chips, semi-sweet or milk
- 1 7- ounce container Marshmallow Creme
Instructions
- Preheat the oven to 350°. Line a 9-inch square baking pan with foil (let the foil hang over all the edges so that you can use it to pull the bars out of the pan later) and grease the foil well.
- To make the dough, combine the butter and sugar in a large bowl and beat until light in color and fluffy, about 3 minutes. Add the egg and vanilla and beat to combine. Add the flour and stir until well combined. Stir in the graham cracker crumbs.
- Press 2/3 of the dough into the bottom of the baking dish. unwrap and place Reese’s Cups evenly over the dough, sprinkle the chocolate chips evenly over the Reese’s (letting them fall into the cracks), and then carefully spread the whole container of marshmallow creme over the chocolate. Then gently press the remaining dough evenly over the marshmallow creme.
- Bake for 25 minutes until the crust starts to turn golden brown. Remove from the oven and allow the bars to cook for an hour in the pan. After an hour use the edges of the foil to remove the bars from the pan. Let the bars cool on a wire rack (in the foil) out of the pan until set (this will take a couple of hours).
- To cut the bars use a sharp knife and clean it in between each cut. These are sticky! I had to stick my bars in the fridge for an hour before cutting.
Notes
- Make sure your butter, egg, and peanut butter are at room temperature before mixing.
- You can also line your baking dish with parchment paper, allowing the edges to hang over. This makes it easy to lift the bars out once they’ve cooled, ensuring clean cuts and less mess.
- Spread a thin layer of peanut butter over the graham cracker base before adding the chocolate and marshmallows.
- Try adding crushed pretzels for a salty crunch, mini marshmallows for extra gooeyness, or even a sprinkle of sea salt on top to elevate the flavor profile.
Excited to try these…on my free day.