These are brownies with layers of peanut butter and frosting that my mother used to make me as a child. Chocolate and peanut butter lovers will go crazy!

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Ingredients

20
Original recipe yields 20 servings
The ingredient list now reflects the servings specified
Ingredient Checklist

Directions

Instructions Checklist
  • Preheat oven to 350 degrees F (175 degrees C). Grease a 10x15-inch jellyroll pan.

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  • Melt 1 cup butter and 1/3 cup cocoa powder together in a saucepan over low heat, stirring often, until smooth, about 5 minutes. Remove from heat and cool slightly.

  • Combine white sugar, flour, and salt together in a large bowl; add chocolate mixture. Beat with an electric mixer on medium speed until blended, 1 to 2 minutes. Add eggs and vanilla extract; stir until combined. Pour batter into prepared jellyroll pan.

  • Bake in the preheated oven until edges begin to become crisp, about 20 minutes.

  • Warm peanut butter in microwave for about 2 minutes, stirring once. Spread over warm brownies. Chill brownies in refrigerator for 30 minutes.

  • Heat 1/2 cup butter, milk, and marshmallows in a saucepan over medium heat, stirring often, until marshmallows are melted, about 5 minutes. Remove from heat; whisk in 1/4 cup cocoa. Gradually stir confectioners' sugar into marshmallow mixture until smooth. Spread frosting over peanut butter layer of brownies. Chill in refrigerator until set, about 20 minutes.

Nutrition Facts

505.2 calories; protein 9.5g 19% DV; carbohydrates 59.1g 19% DV; fat 28.2g 43% DV; cholesterol 74.1mg 25% DV; sodium 293mg 12% DV. Full Nutrition

Reviews (9)

Read More Reviews

Most helpful positive review

Rating: 5 stars
07/05/2012
Made these for the first time for the 4th of July. They are amazing. I put them in the freezer after the peanut butter layer until the peanut butter was hard enough to apply the frosting. I micro waved the frosting so it spread easily. They thawed quickly and were a gigantic hit. I will make these again. Read More
(14)

Most helpful critical review

Rating: 3 stars
09/20/2012
They are really good just a little too sweet. I would suggest less icing on top. (And a flat pan to cook in otherwise the batter will pool in one end lol) Read More
(1)
11 Ratings
  • 5 star values: 5
  • 4 star values: 2
  • 3 star values: 3
  • 2 star values: 0
  • 1 star values: 1
Rating: 5 stars
07/05/2012
Made these for the first time for the 4th of July. They are amazing. I put them in the freezer after the peanut butter layer until the peanut butter was hard enough to apply the frosting. I micro waved the frosting so it spread easily. They thawed quickly and were a gigantic hit. I will make these again. Read More
(14)
Rating: 5 stars
08/09/2012
I have now made these twice and both times were amazing! Both times I have followed the recipe exactly (except that the first time I used wheat flour instead of all-purpose and it did not make any difference). I only have 2 notes to add: first I have found that the pb only needs 30 seconds in microwave to soften enough to spread and second that I recommend sifting the coco and the powdered sugar that goes into the frosting. It makes little lumps which isnt bad with the powdered sugar but not that nice to have a bitter taste of coco! These ones are definitely worth the time and effort and I will make them many times more! Read More
(9)
Rating: 5 stars
06/30/2012
Delicious! My family was upset that I only made one batch. I will be making more of these soon! Read More
(5)
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Rating: 4 stars
01/16/2014
I probably shouldn't review this because I simply baked a box of D.H. brownie mix and used the PB and chocolate marshmallow icing per this recipe. The result was very good but if I do this again I will make only half the choc. marshamallow. Read More
(1)
Rating: 3 stars
09/20/2012
They are really good just a little too sweet. I would suggest less icing on top. (And a flat pan to cook in otherwise the batter will pool in one end lol) Read More
(1)
Rating: 5 stars
04/11/2014
I like them because l like Peanut Butter and Brownies to.. Read More
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Rating: 1 stars
10/22/2017
Chocolate topping was flavorless and a clumpy tapioca consistency; it was disgusting. I pitched it and I took the brownies and I made a different topping from a different recipe since I hadn t put it all together yet. Read More
Rating: 4 stars
03/21/2014
I made the bottom layer as the recipe stated. I mixed the peanut butter with graham cracker crumbs both for texture and how can you have chocolate and marshmallow without graham? I used a sleeve of crackers and about 1 1/3 c peanut butter. About a half recipe of icing except 7 marshmallows. The verdict? Yummy:). We will make them again. Read More
Rating: 3 stars
12/29/2015
I followed the directions as written and the brownies came out perfect but the frosting was way too much and it just pooled on the top. It didn't set even after I let it sit in he fridge for more than 30 min or even after I put it in the freezer for another 20 min. I love peanut butter and chocolate together but I thought that the recipe was too see with too much peanut butter. If I ever do this recipe again I'll make sure to make a thin layer of pb (maybe half of what it calls for) and the frosting too. I'll make half of what the frosting calls for too or just look up another chocolate frosting recipe to replace this frosting. The only part I liked about this recipe was the brownie part they came out nice. I topped it with Reese pieces to make it look nice but it came out looking sad since it was kinda watery.:( Read More