S’mores Bars

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A soft, chewy S’mores bar loaded with milk chocolate chips and toasted marshmallows. These easy graham cracker blondies get topped with marshmallows and milk chocolate. Basically S’mores but no campfire required. 



 

I’m not sure there is anything more iconic than a S’mores in the summertime in America. Tell me I’m wrong. And yes just like most when it comes to summertime, I want all things S’mores.

But as much as I love a homemade S’mores on a bonfire these bars are a heck of a lot of easier. They have everything I love about a good S’mores – graham cracker base, ooey gooey milk chocolate, and toasted marshmallows on top. I took these to a 4th of July get together and they were devoured. And when I wish I had saved a couple for myself to take home, that’s how I know this recipe is a winner.

Why You Will Love These S’mores Bars

  • Great Dessert For Summer Get Togethers – I love super easy bar desserts for the summer. I can make them ahead of time and they are easy to transport. Plus everyone wants one!
  • Easier Than S’mores! – I love a good S’mores but these bars are much easier than building a bonfire!
  • Quick To Mix Up – These are super fast to mix up and take about 25 minutes in the oven, so they make a great easy last minute dessert for all those summer parties.
s'mores bars scattered about

Ingredients Needed

  • Dry Ingredients: It’s a simple combination of all-purpose flour, graham cracker crumbs, baking powder, and salt. Now for the graham crackers, you can buy them, or try making Homemade Graham Crackers!
  • Wet Ingredients: Unsalted butter, brown sugar, eggs, and vanilla.
  • Topping: Milk chocolate chips (or Hershey’s Bars) and mini marshmallows (but you could also use large ones cut in half).

How To Make These S’mores Bars

Whisk together the flours, graham cracker crumbs, baking powder, and salt into a bowl. Set aside.

In a second mixing bowl, whisk together the melted butter, brown sugar, eggs, and vanilla.

bowl of smores bar batter with a whisk

Add the dry ingredients and mix until just combined.

graham cracker cookie dough in a mixing bowl with a spatula

Spread the batter into a prepared 9×13 pan and bake for about 22-25 minutes or until the top if set and golden brown. These bars may not appear to be done, but they will continue to set up once they cool.

If you continue to bake these until they “appear done” then you will surely overbake them. So trust me, take them out at 25 minutes.

baked graham cracker smores bar base in a pan

Then add your chocolate. You can use milk chocolate chips or Hershey bars. I use the “fun size” kind but you can use large ones as well.

Hershey bars on top of the S'mores cookie bar base

Then add the marshmallows! Now it’s time to broil. You want to set the bars back in the oven (I recommend the middle of the oven so they aren’t too close and burn) and broil for 1-2 minutes. You just want to get the marshmallows lightly toasted. Keep a close eye!

marshmallows on top of the s'mores bar untoasted

Recipe Tips

  • Be sure to measure your flour correctly. Overmeasuring can result in a cakey texture instead fo the perfect chewiness that we are going for. You can get the full tutorial on how to measure your flour here.
  • Make sure your ingredients are room temperature, like your eggs. To bring your eggs to room temperature quickly place them in a bowl of warm water for 10 minutes.
  • Do not overbake. They may appear not done at this time, but taking them out during that time, ensures you wonโ€™t overbake them! 
  • Watch The Broiler! Once the marshmallows are on and they are under the broiler. Be careful. They can burn quickly!

How To Cut These S’mores Bars: 

You could just bring the whole pan to your party and call it a day. No one would care once they taste one. But if you want to cut them into attractive bars here a few tips:

  • Line Your Pan. First, line your pan with parchment paper and spray lightly with cooking spray. This will make it easier to simply lift out the entire pan at once and cut into bars.
  • Allow them to cool. Completely. Cutting them warm is just going to end up in a GIANT disaster. Let them sit on the counter until they come to room temperature. I pop mine in the fridge to hurry up this process and help to firm up the bars before cutting. Usually at least an hour if not longer if I can wait that long!
  • Use a knife lightly greased. Otherwise the marshmallow stick.
three S'mores bars stacked on top of each other

Recipe FAQ’s

How do you store these bars?

I love bar desserts because not only are they simple to make but you can also make them ahead of time. In fact I recommend it, because they need time to set up before you cut into them.ย 
You can store these at room temperature for up to 3 days.ย Just make sure they are covered.

Can I freeze these s’mores bars?

I haven’t froze these with the topping. I would freeze the bars without the chocolate and marshmallows for up to 3 months. When ready to serve, thaw at room temperature then top the bars and place under the broiler to toast the marshmallows.

Should you refrigerate these bars?

I donโ€™t recommend refrigerating these S’mores bars. Storing them at room temperature if best.ย 
Refrigerating the bars can end up drying them out.ย ย 

Can I use large marshmallows?

Yes but I would cut them in half first.

What if I can’t find the graham crackers?

This was actually a question from a reader who lives in South Africa and she told me graham crackers aren’t a thing. I suggested a sweet tea biscuit (cookie) would work. But you could also have fun and replace the graham crackers with vanilla wafers, potato chips, pretzels, crushed ice cream cones, or cereal as suggested by The Kitchn.ย 

three stacked S'mores bars

For More Recipes You Might Like:

Tools To Make These S’mores Bars:

Smores Bars

A chewy graham cracker bar topped with milk chocolate chips, and marshmallows.
5 from 12 votes
Print Pin Rate
Course: Dessert
Cuisine: American
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 16 bars
Calories: 329kcal

Ingredients

  • 1 1/2 cups (180 g) all purpose flour
  • 1 package (9 full rectangles, 135 g) graham crackers (pulsed into crumbs)
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 12 tablespoons (170 g, 1 1/2 sticks) unsalted butter melted
  • 1 1/2 cups (320 g) packed light brown sugar
  • 2 large eggs room temperature
  • 2 teaspoons natural vanilla extract
  • 30 mini Hershey bars (or you can use full size) (or 2-3 cups milk chocolate chips)
  • 3-4 cups mini marshmallows (or large ones cut in half)

Instructions

  • Position a rack in the center of your oven. Preheat the oven to 350F. Lightly coat a 9 by 13 baking pan with cooking spray or line with parchment paper.
  • Whisk together flours, graham cracker crumbs, baking powder and salt into a bowl. Set aside.
  • In a second mixing bowl, whisk together melted butter, brown sugar, eggs, and vanilla.
  • Add dry ingredients and mix until just combined, 5 to 10 seconds. Spread batter into prepared pan.
  • Bake for about 22-25 minutes, or until the top is set and golden brown. Bars may appear to be not done, but they will set up as they cool.
  • Remove the pan from the oven. Layer the top with the chocolate bars. Top with marshmallows.
  • Turn the oven to broil and return the bars to the oven for 1 to 2 minutes or until the marshmallows are lightly toasted. Keep a close eye on them so they don't burn! Set the pan on a wire rack and cool completely before cutting into bars.

Video

Notes

  • Storage:ย You can store these at room temperature for up to 3 days.ย Just make sure they are covered.
  • Swap Out The Mini Marshmallows – Use large marshmallows but cut them in half first.
  • Be sure to measure your flour correctly. Over-measuring can result in a cakey texture instead fo the perfect chewiness that we are going for. You can get the full tutorial on how to measure your flourย here.
  • Make sure your ingredients are room temperature, like your eggs. To bring your eggs to room temperature quickly place them in a bowl of warm water for 10 minutes.
  • Do not overbake.ย They may appear not done at this time, but taking them out during that time, ensures you wonโ€™t overbake them!ย 
  • Watch The Broiler! Once the marshmallows are on and they are under the broiler. Be careful. They can burn quickly!
  • Graham Cracker Crumbs:To make graham cracker crumbs, pulse crackers in a food processor until finely ground.

Nutrition

Calories: 329kcal | Carbohydrates: 60g | Protein: 5g | Fat: 8g | Saturated Fat: 4g | Cholesterol: 36mg | Sodium: 251mg | Potassium: 65mg | Fiber: 1g | Sugar: 40g | Vitamin A: 114IU | Vitamin C: 1mg | Calcium: 53mg | Iron: 2mg
Tried this Recipe? Pin it for Later!Mention @BostonGirlBakes or tag #BostonGirlBakes!


 

21 Comments

  1. 5 stars
    Can’t wait to try these and use my kitchen torch!

    1. Thank you! Iโ€™m excited for you to try the Sโ€™mores Bars and hope your kitchen torch adds a fun touch. Enjoy! ๐Ÿ˜Š

  2. terry bocci says:

    More of a question than a comment, does the chocolate setup back to the constancy of a chocolate bar or does is stay soft

    1. As the bars cool, they will harden back up again.

  3. 5 stars
    Made these for a BBQ and they were a hit! Easy to put together and everyone loved them! Iโ€™d recommend baking the base a little longer as mine was still softer than my preference at the 25 mins mark and definitely let them cool for a couple hours before cutting!

    1. Hi Lauren, I’m so glad everyone loved them. Yes every oven can be different so it’s best to check and see if yours might need more time.

  4. 5 stars
    I have been looking for a good s’mores bar recipe and I have found it. These are so good. Made a batch today and ate three of them. The chocolate and marshmallows melted perfectly. Thanks for a great recipe for the August baking challenge. I know these won’t last long around here.

    1. aw thank you Maureen! Thanks for participating and glad you loved them!

  5. 5 stars
    These were a success for the 4th! Super easy, super yummy. My baker friend (owns his own shop) said he’d be happy with just the blondie base!

    I don’t bake often, but these will be made again!

    1. aw that’s such a sweet comment, thank you Diana! I’m so glad these were a success for you!

  6. 5 stars
    What a lovely bars, love smores anything! This was a proper dessert iโ€™d say, delicious!

  7. 5 stars
    I love smores of all kinds, and in cookie bars look so good!! Bookmarked to make this long weekend, thank you so much for the recipe! ๐Ÿ™‚

    1. Thanks Cathleen let me know how it turns out!

  8. 5 stars
    The minute my kids saw me looking at this recipe they started begging to make it. We don’t get out camping much, and this recipe is a perfect way to satisfy our smores cravings during the summer!

    1. Thanks Jenny! Yes much easier than camping ๐Ÿ˜†

  9. 5 stars
    I love everything about these s’mores bars! They are easy to make, deliciously decadent, and super kid-friendly. We made these for movie night tonight with our family and everyone loved them!

    1. Aw thanks Anjali! Glad you all loved them ๐Ÿ™‚

  10. 5 stars
    These s’mores bars are going to be your new picnic and cookout favorite dish to bring.

  11. 5 stars
    This is my favorite summer dessert! It’s so easy to make and loaded with goodness.

  12. 5 stars
    These were so tasty my kids loved them ๐Ÿ™‚

5 from 12 votes (1 rating without comment)

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