Chocolate Peanut Butter Sheet Cake

5 from 7 votes

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Chocolate Peanut Butter Sheet Cake has lots of whipped cream for good measure! This is a dessert to die for. It’s basically a cross between a thin Chocolate Cake and Peanut Butter Pie. Make it soon friends!

chocolate peanut butter sheet cake still in the pan

Chocolate Peanut Butter Sheet Cake | Feeds a Crowd!

Let’s talk CAKE. Chocolate Peanut Butter Sheet Cake to be exact. AKA my latest addiction AKA mommy crack AKA heaven AKA my pants don’t fit anymore.

When I was in San Jose just a few weeks ago, I had one of the tastiest peanut butter pies ever. That is saying a lot because we do a whole lot of peanut butter + chocolate-eating at my house. So I came home dreaming about peanut butter pie. Somewhere along the way, I thought “why not make it in cake form?” so I did.

BEST. DECISION. EVER.

This stuff is seriosuly addictive and the best part about it, is that it can feed a crowd (like most sheet cakes can) which means it’s perfect for sharing!

Main Ingredients Needed

I frankenstein-ed two different recipes together to make this Chocolate Peanut Butter Sheet Cake, but don’t worry you can find all of the nitty-gritty details down below in the recipe card. But for now, here are the basics:

  • Chocolate Cake – you’re going to need a basic chocolate sheet cake recipe. I recommend using my Classic Chocolate Cake recipe but you have a recipe that you’d like to make instead, go for it!
  • Peanut Butter Pie Filling – then the peanut butter ‘frosting’ is actually a peanut butter pie filling I borrowed from this blog! Super yummy stuff!
  • Toppings – and, just because I can, I topped the whole thing with whipped cream, chocolate syrup, and peanuts!

Are you drooling yet?

How to Make Chocolate Peanut Butter Sheet Cake

For full details on how to make this Chocolate Peanut Butter Sheet Cake see the recipe card down below 🙂

Make the Cake

Make chocolate cake batter according to directions from this recipe. Spread into a greased half sheet pan (18×13). Bake until a toothpick comes out with a few moist crumbs when inserted. Cool to room temperature.

Make the Peanut Butter Topping

Make peanut butter pie filling according to recipe directions. Spread over cooled cake. Place in refrigerator.

Decorate!

Whip cream with powdered sugar and vanilla until stiff peaks form. Spread over top peanut butter pie filling. Top with chocolate syrup and chopped peanuts.

Refrigerate until filling is set. Cut into squares and serve.

chocolate peanut butter sheet cake with text over the image detailing the toppings (whipped cream, peanuts, chocolate syrup, peanut butter pie filling and chocolate cake).

More Chocolate Peanut Butter Recipes to Try!

If you have a special event coming up, be sure to make this chocolate PB sheet cake. It will blow peoples’ minds! Guaranteed. You’re welcome in advance. 🙂

The printable recipe card is down below!

5 from 7 votes

Chocolate Peanut Butter Sheet Cake

Chocolate Peanut Butter Sheet Cake has lots of whipped cream for good measure! This is a dessert to die for!
servings 16 servings
Prep Time 3 hrs
Cook Time 20 mins
Total Time 3 hrs 20 mins

Ingredients

  • 1 Boxed Chocolate Cake Mix

For the Peanut Butter Pie Filling

Toppings

  • 2 cups whipped cream
  • 1/4 cup powdered sugar
  • 1 teaspoon vanilla
  • chocolate syrup optional garnish
  • chopped peanuts optional garnish

Instructions

  • Make chocolate cake batter according to directions with water, oil and eggs. Spread into greased half sheet pan. Bake at 350 degrees for 12-15 minutes or until toothpick comes out with a few moist crumbs when inserted. Cool to room temperature.
  • Whip heavy cream until fluffy. Set aside. Beat the cream cheese until fluffy. Add in the peanut butter, and then slowly add in the powdered sugar until combined. Mix in sweetened condensed milk, vanilla, and lemon juice. Fold in 1/3 of the whipped cream and then mix in the remaining. Spread over cooled cake. Place in refrigerator.
  • Whip cream with powdered sugar and vanilla until stiff peaks form. Spread overtop peanut butter pie filling. Top with chocolate syrup and chopped peanuts. Refrigerate 1-2 hours or until filling is set. Cut into squares and serve.

Notes

*Peanut Butter Filling recipe is taken from here. 

Nutrition

Calories: 595kcal | Carbohydrates: 86g | Protein: 1g | Fat: 27g | Saturated Fat: 12g | Cholesterol: 39mg | Sodium: 258mg | Potassium: 155mg | Fiber: 2g | Sugar: 68g | Vitamin A: 59IU | Vitamin C: 1mg | Calcium: 16mg | Iron: 10mg
Course: Dessert
Cuisine: American
Keyword: Chocolate Peanut Butter Sheet Cake

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Recipe Rating




40 Responses
  1. Karly

    I would take laundry over dishes any day of the week. Even poopy laundry!

    Love this cake! It looks so rich and heavenly!

  2. Stephanie @ Girl Versus Dough

    Oh my goodness — bless you for making this cake. I cannot WAIT to make it (and devour it, natch :))!

  3. StacyM

    I LOVE peanut butter pie, mmm just thinking about it on top of a moist chocolate sheet cake is sending me over the edge!

  4. Karli

    We started a Sunday dinner tradition recently…each Sunday we invite a different family over for dinner at our house. I know exactly which family is getting this cake/pie for their dessert. AMAZING!

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  6. Kathy

    I have a HUGE problem! The link to the peanut butter pie filling does not work. It says fatal error every time I click on it. I’ve gone to the site looking for the recipe and cannot find it. Can you help? This recipe for your cake does not work without it.

    1. Lauren

      That’s a problem with Jennie’s site {In Jennie’s Kitchen}. Sorry about that! The recipe for the peanut butter filling is the same on Shaina’s site here: http://foodformyfamily.com/recipes/peanut-butter-pie-for-mikey-and-jennifer-perillo . Just follow the directions for the pie filling and spread that on your cake. Enjoy!

  7. Gina

    Will definitely try this, sounds awesome! But didn’t your whipped cream melt or doesn’t it last that long lol? I use a sturdy whipped cream frosting with the addition of cream cheese if it’s going to be sitting out for awhile ( for wedding cakes & such) & it seems to work well. I use less or more depending on the situation or how thick I want it ;)…but I am for sure using it on this, my (grown!) sons will love this thank you!

  8. Susan

    I followed the link to the chocolate cake recipe, and there are places to “click here” for notes on revising recipe for new smaller cake mix size. None of those links work. Do you know what revisions are necessary?

  9. Vanessa S.

    5 stars
    I made this today for a Christmas party at work. It was fantastic! It was a huge hit and I came home with an empty pan, which made me very happy!

  10. Aubri

    5 stars
    Hey Lauren! I’ve made this recipe before, and it is so good, but it appears that most of the ingredient list has disappeared! Help!

  11. Jettie

    I can’t even find the peanut butter pie filling recipe. Can you use another PB pie filling from another recipe.? I am going to try that.. cause this looks so yummy.

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