S’mores Cookie Bars

Marshmallow fluff is something I have never eaten. I don’t know if it’s because I grew up in the Midwest or what… This recipe called for marshmallow fluff so I was excited to be able to check this fluff out and see what all the buzz is about. Marshmallow fluff is interesting. Since I had to use the entire jar for the bars, I didn’t get a chance to try a fluffer-nutter sandwich.

My sister B and I agreed that the proportions seemed a bit off on these bars. The chocolate was thick and seemed to overpower the other flavors in a classic S’mores. I think next time I would use regular Hershey’s bars instead of the king-sized ones which are pretty hefty.

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S'mores Cookie Bars

Yield: ~16 bars


1/2 cup butter, room temperature
1/4 cup brown sugar
1/2 cup sugar
1 large egg
1 tsp vanilla extract
1 1/3 cups all purpose flour
3/4 cup graham cracker crumbs
1 tsp baking powder
1/4 tsp salt
2 king-sized milk chocolate bars (e.g. Hershey’s)
1 1/2 cups marshmallow creme/fluff (not melted marshmallows)


Preheat oven to 350°F. Grease an 8-inch square baking pan.

In a large bowl, cream together butter and sugar until light. Beat in egg and vanilla. In a small bowl, whisk together flour, graham cracker crumbs, baking powder and salt. Add to butter mixture and mix at a low speed until combined.

Divide dough in half and press half of dough into an even layer on the bottom of the prepared pan. Place chocolate bars over dough. 2 king-sized Hershey’s bars should fit perfectly side by side, but break the chocolate (if necessary) to get it to fit in a single layer no more than 1/4 inch thick. Spread chocolate with marshmallow creme or fluff. Place remaining dough in a single layer on top of the fluff.

Bake for 30 to 35 minutes, until lightly browned. Cool completely before cutting into bars.

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13 Responses to “Alton Brown’s “The Chewy””

  1. #
    Bridget — March 5, 2009 at 6:02 pm

    Aren’t they the best? They’re so addicting. I’ve actually starting using the same ingredients, but mixing them like a more traditional chocolate chip cookie (i.e., softened butter instead of melted), because I like the dough better with softened butter. The baked cookies were just as good. Best of both worlds!

  2. #
    Laure — March 5, 2009 at 9:45 pm

    These look gorgeous. Don’t you just love AB??? 🙂

  3. #
    Julie — March 6, 2009 at 4:06 am

    The cookies look great. I love AB too..he’s such a dork (in a good way).

  4. #
    CoCo — March 6, 2009 at 5:50 am

    I love the ATK/CI Thick and Chewy Chocolate Chip Cookies. I will have to try these to see what I think. I remember seeing that the recipes looked similar so I am sure I will love them.
    Another AB lover here. My husband gives me a hard time about my DVR list with him but loves it when I give him a fun tidbit or cook him something from AB.

  5. #
    Jen — March 6, 2009 at 1:34 pm

    I completely agree CoCo. Hubby does the same thing. I sometimes even watch episodes I’ve seen before! Hubby doesn’t like to admit it, but he loves AB too. Sometimes he’ll be the one saying “AB says to do this…”

  6. #
    foodess — March 9, 2009 at 3:38 am

    They look SO good!! I am a sucker for a chewy chocolate chip cookie. Although, I must side with your hubby – I prefer mine with just a bit of chocolate.

  7. #
    Naomi — March 9, 2009 at 6:46 am

    How much is a stick of butter? I’m not in the US and have never come across this measurement before.

  8. #
    Jen — March 9, 2009 at 11:08 am

    Sorry about that Naomi – 1 stick of butter = 8 Tbsp. Does that help?

  9. #
    Dani — March 9, 2009 at 11:46 am

    this is very similar to the ccc recipe i use, but anything that makes it chewier is good in my books! i will have to keep this one in mind 🙂

  10. #
    Naomi — March 13, 2009 at 10:05 am

    Yes Jen, thank you!

  11. #
    Allie — June 2, 2010 at 8:43 pm

    Yum! I will definitely be trying these. I always chill my cookie dough too usually because I’m too busy with 3 little ones but I also read that article in the NY times awhile ago and I felt like I deserved a nice big pat on the back for always doing the 24hour chill 🙂 Great post and beautiful cookies!

  12. #
    Susan — June 23, 2015 at 4:41 pm

    I love Alton Brown because of his scientific approach to cooking and baking. I’ve been baking “The Chewy” for years. One thing I do differently: Before chilling the dough, I scoop it into balls. This makes the process much easier. Sometimes I freeze the balls for baking later. After I place the balls on parchment, I carefully place a few extra chocolate morsels on top, pointy side up. This extra step produces picture-perfect cookies every time.

  13. #
    Desiree — July 2, 2016 at 1:56 am

    The Chewy is my go to recipe for cookies. I make a few alterations, occasionally, such as substituting 1/4 of the brown sugar with dark brown sugar. I bake small portions in mini muffin tins; one batch makes 48 cookie bites that are super chewy and the perfect size bite. I’ve made them every year for Christmas gifts for a few years now.

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