My sister-in-law Laura requested I make my Peanut Butter Skillet S’mores Nachos for her soon to be daughter-in-law, Stephanie’s bridal shower last weekend! Since the skillet s’mores are the kind of dessert that’s fun to gather round, dig in and get a little messy while eating – I thought maybe we needed something a little neater for the shower.
I decided to make Peanut Butter S’mores Cookie Bars! I made a few versions, made some tweaks and here’s the final delicious recipe! The chewy cookie dough base is loaded with graham cracker crumbs, chocolate chips and peanut butter chips/candies… then, after baking, you top the bars with mini marshmallows, more chocolate and peanut butter chips/candies and pop them under the broiler to toast the marshmallows! The toasting gives the Peanut Butter S’mores Cookie Bars that authentic campfire s’mores flavor! Yum!! Enjoy!
![Peanut Butter S'mores Cookie Bars - Mixing in red Artisan KitchenAid stand mixer](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-Mixing-768x1024.jpg)
![Peanut Butter S'mores Cookie Bars - 9x13x2-inch aluminum pan lined with foil sling and dough in center ready to be spread](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-prepare-pan-1024x768.jpg)
![Peanut Butter S'mores Cookie Bars - 9x13x2-inch aluminum pan fitted with foil sling with dough spread in pan](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-press-in-pan-1024x768.jpg)
![Peanut Butter S'mores Cookie Bars - 9x13x2-inch aluminum pan fitted with foil sling with baked dough being topped with marshmallows](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-top-with-marshmallows-1024x768.jpg)
![Peanut Butter S'mores Cookie Bars - 9x13x2-inch aluminum pan fitted with foil sling with baked dough being topped with broiled marshmallows](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-broil-1024x768.jpg)
![Peanut Butter S'mores Cookie Bars - close up photo of bars cut, 2 stacked between parchment squares and one on spatula](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-close-up-1024x705.jpg)
![Peanut Butter S'mores Cookie Bars - close up photo of bars cut and one on spatula](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-1024x683.jpg)
![Peanut Butter S'mores Cookie Bars - close up photo of bars cut and one on spatula](https://www.epicuricloud.com/wp-content/uploads/2019/05/Peanut-Butter-Smores-Cookie-Bars-300x300.jpg)
Peanut Butter S'mores Cookie Bars
Ingredients
- Non-stick baking spray or butter to grease pan
- 1 3/4 cups all-purpose flour
- 1 3/4 cups graham cracker crumbs finely ground
- 1 teaspoon baking powder
- 1/2 teaspoon salt I used coarse kosher salt, if using table salt, use 1/4 teaspoon
- 2 sticks (1 cup) butter softened
- 1 1/2 cups light brown sugar lightly packed
- 2 large eggs
- 2 teaspoons vanilla extract
- 1 cup + 2 tablespoons chocolate chips divided
- 1/4 cup + 2 tablespoons peanut butter chips or Reese's pieces divided
- 1 1/3 cups mini marshmallows
Instructions
- Preheat oven to 350 degrees F. Arrange oven rack to center position.
- Spray or grease 9 x 13 x 2" pan with non-stick spray or butter. (I used a thinly aluminum metal pan. If using a glass or dark colored pan reduce oven temperature to 325.) Line pan width-wise with 2 layers of foil that over hang the sides of the pan, fold over excess. Spray or grease foil.
- Whisk together flour, graham cracker crumbs, baking powder and salt in small bowl.
- Using electric mixer, cream together butter and sugar for several minutes or until fluffy and lightened in color.
- Add eggs one at a time, then add vanilla.
- Mix in dry ingredients, then add 1 cup of the chocolate chips and 1/4 cup of the peanut butter chips.
- Press dough into prepared pan. (I use buttered fingers or spatula to press dough into pan.)
- Bake for 25-30 minutes or until golden browned on the edges and still a little soft in the center.
- Remove pan from oven, set oven to broil (keeping oven rack in same center position.) Top baked bars with marshmallows and remaining 2 tablespoons each chocolate and peanut butter chips.
- Return pan to oven and broil - WATCHING - until the marshmallows are toasted. It will happen quickly - don't take your eyes off. Remove pan from oven and allow to cool fully.
- Once cool, use foil sling to remove to a cutting board. Cut into 24 squares. (Wipe knife clean in between cuts to prevent sticking.) Store in an airtight container for several days.
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