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5.0 from 15 votes

Peanut Butter S'more Bars

These peanut butter s'more bars will immediately have you asking for some more! Traditional s'more flavors of chocolate and marshmallow are combined with peanut cups for one amazing bar.

Prep Time
5 mins
Cook Time
5 mins
Total Time
40 mins
Servings: 12 bars
Calories: 531 kcal
Course: Dessert
Cuisine: American

Ingredients

  • 1 cup butter at room temperature
  • ½ cup brown sugar
  • 1 cup sugar
  • 3 large eggs
  • 2 tsp vanilla extract
  • 2 ⅔ cups flour
  • ⅓ cup Graham cracker crumbs
  • 2 tsp baking powder
  • ½ tsp salt
  • 12 Reese's peanut butter cups
  • 2 Hershey milk chocolate bars
  • 1 ½ cups marshmallow fluff

Instructions

    Cup of Yum
  1. Preheat oven to 350 degrees.
  2. Line a 9x13 baking dish with parchment paper or aluminum foil
  3. In a large bowl, cream together butter and sugars until light.
  4. Add eggs and vanilla and beat.
  5. In a large bowl, whisk together flour, graham cracker crumbs, baking powder, and salt.
  6. Add dry ingredients to butter mixture and mix on a low speed until combined.
  7. Divide dough in half and press half of the dough into an even layer on the bottom of the prepared baking pan.
  8. Place Reese's peanut butter cups in rows on the dough then fill in the gaps with Hershey chocolate bar pieces.
  9. Spread marshmallow fluff on top of the chocolate, making sure to cover all of it.
  10. Place remaining dough on top of the marshmallow in a single layer.
  11. Bake for 30 to 30 minutes or until lightly browned.
  12. Allow bars to cool completely then cut into bars.

Notes

  • Line the baking dish with parchment paper, with a bit of extra on the ends, so that when your bars are done, you can simply pull the parchment paper out and cut out of the dish.
  • Flatten the remaining dough before you put it on top then just patch it together to cover most of the marshmallow. It doesn’t need to be totally covered.
  • Cool completely before cutting into the bars. I know you’ll want to eat them right away but they need to cool or you’ll burn your little tongue on the marshmallow and they may fall apart.

Nutrition Information

Calories 531kcal (27%) Carbohydrates 74g (25%) Protein 7g (14%) Fat 24g (37%) Saturated Fat 13g (65%) Cholesterol 88mg (29%) Sodium 331mg (14%) Potassium 227mg (6%) Fiber 2g (8%) Sugar 45g (90%) Vitamin A 550IU (11%) Calcium 71mg (7%) Iron 2mg (11%)

Nutrition Facts

Serving: 12bars

Amount Per Serving

Calories 531

% Daily Value*

Calories 531kcal 27%
Carbohydrates 74g 25%
Protein 7g 14%
Fat 24g 37%
Saturated Fat 13g 65%
Cholesterol 88mg 29%
Sodium 331mg 14%
Potassium 227mg 5%
Fiber 2g 8%
Sugar 45g 90%
Vitamin A 550IU 11%
Calcium 71mg 7%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.