Name: Reese’s S’mores Bars – Gooey Chocolate & Peanut Butter
Prep time: 10 min
Cook time: 25 min
Total time: 35 min
Yield: 16 bars
Cuisine: American
Ingredients: ½ cup butter (softened); ½ cup peanut butter ((I used smooth.)); ¼ cup packed brown sugar; ½ cup sugar; 1 egg; 1 teaspoon vanilla; 1 ¼ cups flour; 1 teaspoon baking powder; ¼ teaspoon salt; 6 graham crackers (crushed into crumbs); 9-12 regular sized Reese's Cups (or the equivalent if using fun size); ⅔ cup chocolate chips (semi-sweet or milk); 7 ounces Marshmallow Creme (1 container)

S’mores Barsinclude 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!

Close-up of Reeses Smores Bars on a tray, crowned with a crumbly layer and white icing. One piece is stacked on another, revealing a gooey, layered interior. The golden-brown bars boast visible chunks and a textured surface, capturing the essence of everyones favorite campfire treat.

If you’ve never tried Reese’s S’mores Bars, you’re in for a delightful surprise!This dessertcombines the belovedflavors 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 ovenin 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!

Why You’ll Love This S’mores Bars Recipe

Quick Prep:Ready for the oven in just10 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 anirresistible combination of crunchy graham crackers, gooey melted marshmallows, creamy chocolate, and smooth peanut butterthat 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 equallybeloved 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 withpeanut butter s’mores bars— trust me on this one!

Recipe Ingredients

Butter
Peanut Butter —I used smooth.
Brown Sugar
GranulatedSugar
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.

portion bowls each with raw ingredients to make Reeses S'mores Bars.

How To Make Reese’s S’mores Bars

clear mixing bowl in the process of making 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, peanut butter, and sugar until fluffy, then add the egg and vanilla. Mix in flour and graham cracker crumbs until combined.

Reeses S'mores Bars in a square tin pan.

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

Can I use any type of Reese’s to make this dessert?

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!

How do I cut desserts that are too sticky?

Stick your dessert in the fridge before attempting to cut. I had to stick my bars in the fridge for an hour before cutting.

What is the best way to keep S’mores bars from sticking to the pan?

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.

What can I use as a substitute for graham crackers?

If you don’t have graham crackers, digestive biscuits, vanilla wafers, or other crisp cookies can work as a substitute.

A plate with stacked dessert bars, featuring a crumbly golden crust, a layer of melted chocolate, and toasted marshmallows on top. The background shows a subtle checkered cloth and blurred wooden board with more dessert bars.

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 flavorsand 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 withice cream, a drizzle ofhot fudge, and a dollop ofwhipped creamfor 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 temperaturefor 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 forup to 2 months— wrap them individually in plastic wrap and place them in a freezer-safe bag or container.

When ready to enjoy, thawthem at room temperature or briefly warm them in the microwavefor that gooey, just-baked texture.