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Smores cookie bar recipe is a baked dessert bar made with buttery cookie dough, graham cracker crumbs, chocolate chips, and mini marshmallows, ready in about 50 minutes total. These S’mores Cookie Bars yield 16 bars and bring classic s’mores flavor to a 9×13-inch pan with an easy, sliceable finish. The top turns golden brown while the center stays set, with gooey pockets of chocolate and marshmallow in every square.
I am Hana, founder of EmpireFoodie.com, and I test bar desserts like this one for reliable texture and clean slicing. Theo is usually the first one to ask for a square once the pan cools, which helps me keep the method practical and repeatable.
The smell of melted chocolate and toasted marshmallow fills the kitchen as these S’mores Cookie Bars bake. The crust-like cookie layers stay tender, while the graham cracker pieces add that familiar snap that keeps each bite from feeling too soft.
For a game day spread, I often cut the bars into neat squares and arrange them like a simple field layout with green napkins or team-color wrappers. That kind of presentation keeps S’mores Cookie Bars easy to grab at a potluck or tailgate without turning the tray messy.
Table of Contents
- Why do these bars work so well for parties?
- What ingredients do you need for S’mores Cookie Bars?
- How do you make S’mores Cookie Bars step by step?
- Frequently Asked Questions About S’mores Cookie Bars
- What are the best tips for perfect bars?
- How should you serve and transport them?
- How far ahead can you make them and how should you store them?
Why do these bars work so well for parties?
Smores Cookie Bar Recipe works so well because it gives you one pan, 16 bars, and a familiar campfire flavor without needing a fire. The buttery base, graham cracker crumbs, chocolate chips, and mini marshmallows bake into a sturdy dessert that slices cleanly for parties, bake sales, and Dessert For Game Night.
- They travel better than loose cookies. The 9×13-inch slab stays intact after cooling, so each square holds together for a tray, box, or foil-lined pan.
- They fit casual gatherings. Sixteen bars is a practical yield for Sweet Treats For Parties, and the portions are easy to serve without extra utensils.
- They bring classic flavor in a baked format. The graham crackers and marshmallows echo a S’more Bars Recipe, while the cookie dough adds a soft, chewy base.
- They work ahead of time. After a full cool-down, the bars can be cut and stored so serving later feels simple instead of rushed.
The balance here matters more than extra richness. Because the dough is spread in two layers and topped with graham cracker pieces plus a marshmallow finish, the bars taste familiar while still holding their shape.
I tested this style for a dessert tray that needed neat edges, and the fully cooled bars cut much more cleanly than warm ones. That makes them a solid choice when you need Best Smores Bars that still look tidy on a platter.
What ingredients do you need for S’mores Cookie Bars?
These bars use simple pantry ingredients plus graham crackers, chocolate chips, and mini marshmallows to build the full s’mores flavor in one pan. The dough starts with softened butter, brown sugar, and granulated sugar, then gets bulk from flour and graham cracker crumbs for a chewy, structured finish.
- 1 cup unsalted butter, softened
- 3/4 cup packed light brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 2 1/4 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 1/2 cups graham cracker crumbs
- 1 1/2 cups chocolate chips, divided
- 2 cups mini marshmallows
- 6 full-size graham crackers, broken into pieces
Softened butter is important because it creams smoothly with the sugars, which helps the bars bake up with a lighter, more even texture. Graham cracker crumbs matter too, since they deepen the s’mores flavor and keep the cookie base from tasting plain.
Dividing the chocolate chips is also useful because 1 cup goes into the dough while the remaining chips sit on top with the marshmallows. That layering gives S’mores Cookie Bars a more obvious chocolate hit in every bite.
You might also enjoy our chocolate chip cookie bars.
How do you make S’mores Cookie Bars step by step?
These bars come together by making a graham-studded cookie dough, layering it with graham pieces, chocolate chips, and marshmallows, then baking until set. The method is straightforward, and the 350°F oven gives the top a golden finish while the center stays soft but stable.
Step 1 — Prep the pan and oven
Preheat the oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving an overhang so you can lift the bars out after cooling.
Step 2 — Cream the butter and sugars
In a large mixing bowl, cream together the butter, brown sugar, and granulated sugar until light and fluffy. This step builds air into the dough, which helps the bars bake with a tender crumb instead of a dense one.
Step 3 — Add the eggs and vanilla
Beat in the eggs one at a time, then mix in the vanilla extract. Adding the eggs separately helps the mixture stay smooth, and the vanilla rounds out the sweet graham and chocolate flavor.
Step 4 — Mix the dry ingredients
In a separate bowl, whisk together the flour, baking soda, salt, and graham cracker crumbs. This keeps the baking soda and salt evenly distributed, so the bars rise and season consistently.
Step 5 — Combine the dough
Gradually add the dry ingredients to the wet ingredients and mix until just combined. Fold in 1 cup of the chocolate chips, stopping as soon as the dough comes together to keep the bars soft.
Step 6 — Layer the fillings
Press about two-thirds of the cookie dough evenly into the prepared pan. Sprinkle the graham cracker pieces over the dough, then top with the remaining chocolate chips and the mini marshmallows.
For more ideas, check out our the best single serve chocolate.
Step 7 — Finish and bake
Dollop the remaining cookie dough over the top and gently spread or press it as evenly as possible, even if some marshmallows and chocolate still peek through. Bake for 25 to 30 minutes, or until the top is golden brown and the center is set, then cool completely before cutting into 16 bars.
Frequently Asked Questions About S’mores Cookie Bars
How do I know when S’mores Cookie Bars are done baking?
They are done when the top is golden brown and the center is set after 25 to 30 minutes. The bars should look firm at the edges, with a soft but not wet middle.
Can I make S’mores Cookie Bars ahead of time?
Yes, you can make them ahead and let them cool completely before cutting. That makes them easy to serve later at a party or to pack for a July 4th Baked Goods table.
Why should I let the bars cool completely before slicing?
Cooling completely helps the marshmallow and chocolate set enough for clean squares. I get neater edges when I wait, especially if I plan to serve them with other Best Smores Bars on a dessert tray.
Can I transport these bars to a potluck or tailgate?
Yes, they travel well once cooled and cut. Keep them in a single layer in a covered container so the marshmallows do not stick to the lid.
Are these bars good for a football-themed dessert table?
Yes, they are easy to decorate with team colors or football-shaped toppers after baking and cooling. The square shape also makes them simple to arrange like a field for a Dessert For Game Night spread.
What are the best tips for perfect bars?
These practical tips help S’mores Cookie Bars bake evenly and slice neatly. Each one is based on how the dough behaves in a 9×13-inch pan, where a little control goes a long way.
Looking for something similar? Try our pumpkin cranberry breakfast cookie.
- Use softened butter, not melted butter. Softened butter creams with the sugars and traps air, which improves texture and keeps the bars from turning greasy.
- Stop mixing once the flour disappears. Overmixing can make the bars tougher, and a just-combined dough stays more tender after baking.
- Press the bottom layer evenly. A level base helps the chocolate and marshmallow layer sit in place, so the bars bake more uniformly.
- Cool fully before cutting. The structure firms up as it cools, which makes the difference between crumbly pieces and neat squares.
If you need to serve them over several hours, cut only what you need and leave the rest covered until later. That keeps the marshmallows soft and the top from drying out too quickly.
How should you serve and transport them?
S’mores Cookie Bars are easiest to serve when they are fully cooled, cut into 16 bars, and arranged on a flat tray. Their sturdy shape makes them a smart Baked Smores Dessert for bake sales, picnics, and potlucks where neat portions matter.
- Serve them at room temperature. The chocolate stays soft enough to taste rich, while the marshmallow layer remains pleasantly gooey.
- Pack them in parchment layers. A sheet of parchment between layers prevents sticking if you need to move more than one row at a time.
- Use a sharp knife for clean edges. Wiping the blade between cuts helps each square look tidy for a party platter.
- Dress them for a game day spread. Sprinkle on team-colored candies or add football-shaped toppers after cooling for a fun, simple presentation.
For transport, I place the cut bars in a shallow container so they do not tilt or slide. That makes them easy to bring to a tailgate or watch party without losing their shape.
How far ahead can you make them and how should you store them?
These bars can be made a day ahead and stored after they cool completely. Because the recipe makes 16 bars, it is easy to portion what you need now and keep the rest covered for later in the day.
Store S’mores Cookie Bars in an airtight container at room temperature for short-term keeping, or refrigerate them if your kitchen is warm and you need a firmer texture. For longer storage, wrap them well and freeze the cut squares so you can thaw only what you want.
If you are serving them over several hours, keep the full pan covered until just before slicing, then uncover only the tray that is out. That helps the bars stay fresh-looking and keeps the marshmallow top from drying out too fast.
S’mores Cookie Bars
Equipment
- Mixing bowl
- Whisk
- hand mixer
- 9x13-inch baking pan
- parchment paper
- Spatula
Ingredients
- 1 cup unsalted butter (softened)
- 3/4 cup packed light brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 2 tsp vanilla extract
- 2 1/4 cup all-purpose flour
- 1 tsp baking soda
- 1/2 tsp salt
- 1 1/2 cup graham cracker crumbs
- 1 1/2 cup chocolate chips (divided)
- 2 cup mini marshmallows
- 6 full-size graham crackers (broken into pieces)
Instructions
- Preheat the oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper, leaving an overhang for easy removal.
- In a large mixing bowl, cream together the butter, brown sugar, and granulated sugar until light and fluffy.
- Beat in the eggs one at a time, then mix in the vanilla extract.
- In a separate bowl, whisk together the flour, baking soda, salt, and graham cracker crumbs.
- Gradually add the dry ingredients to the wet ingredients and mix until just combined.
- Fold in 1 cup of the chocolate chips.
- Press about two-thirds of the cookie dough evenly into the prepared pan.
- Sprinkle the graham cracker pieces over the dough, then top with the remaining chocolate chips and the mini marshmallows.
- Dollop the remaining cookie dough over the top and gently spread or press it as evenly as possible; some marshmallows and chocolate may still peek through.
- Bake for 25 to 30 minutes, or until the top is golden brown and the center is set.
- Let the bars cool completely in the pan before lifting out and cutting into squares.
Notes
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