This post may contain affiliate sales links. Please read my disclosure policy.
Peanut Butter Brownie Pie has a fudgy brownie base, a creamy peanut butter mousse, and a drizzle of chocolate sauce and salted peanuts. So good! If you love this flavor combination, check out my Chocolate Peanut Butter Sheet Cake next!
Why You’ll Love This Recipe
Everyone in our household loves peanut butter and chocolate together. Nothing seems to beat it. It always fills our cravings whether it be a peanut butter cup, peanut butter M&M’s, or chocolate chips and peanut butter on a spoon (when we’re really in a pinch). Are you all addicted to PB & chocolate as much as we are? I wouldn’t blame you if you were! 🙂
I’m pretty sure this Peanut Butter Brownie Pie could fall under the life-changing category. It’s fudgy and soft from the brownie and then creamy and smooth with the peanut butter mousse on top. Yup. Peanut butter mousse. And then, if that wasn’t enough, I top the whole thing with chocolate sauce and salted peanuts. Ridiculous, right?
Do I Have to use a Boxed Brownie Mix?
No, you can either use a brownie mix for this recipe or make brownies from scratch! Do what is easier for you. For this recipe, I used a boxed brownie mix because it was easier and I had one on hand. But I must say my fudge brownie recipe is pretty dang good if you want to go that route. Either way, this recipe will come out delicious!
Variation – Make these into Brownie Bars!
Don’t have a round springform pan? Make these into bars by using a square springform pan. You can also just use a square 9×9 baking dish for thicker brownies, or a 9×13 pan for thinner brownies. I’ve done it both with a round springform and cut into “pie” shapes, but I’ve also used a square pan and made bars. Either way, I’m still calling it PIE! 🙂
How to Make Peanut Butter Brownie Pie
For full recipe details, including ingredients and measurements, see the printable recipe card down below. Here is step by step what you can expect when making this Peanut Butter Brownie Pie:
Prep
Preheat the oven. Lightly grease a 9 or 10-inch springform pan and set it aside.
Make Brownie Batter + Bake
In a large bowl, mix brownie batter according to package directions if using boxed or from scratch brownie recipe.
Pour into a prepared pan and bake until set. (Look on the back of the box for the time it takes to bake a 9×9 square pan of brownies. That’s a good time to start off with and then go from there.)
Remove brownies from the oven and cool completely.
Pro Tip: If you’re not using a springform pan, I would recommend removing the brownies from the pan before frosting, cutting and decorating.
Next, Make the Peanut Butter Mousse
In a stand mixer, whip heavy cream with vanilla and cornstarch until firm peaks form. Scrape the whipped cream into a smaller bowl and set it aside.
In the same stand mixer bowl (no need to wash!), whip cream cheese and peanut butter together until combined. Stir in powdered sugar and vanilla. Scrape sides and whip again. Carefully fold in whipped cream.
Scoop peanut butter mixture onto cooked brownie and smooth the top. Refrigerate until set, at least 2 hours.
Serve!
When you are ready to serve, remove the sides of the springform pan. Cut into pieces and drizzle with chocolate sauce and salted peanuts.
Storing Peanut Butter Brownie Pie Directions
Store any leftovers in an airtight container, in the fridge for up to 5 days!
Can I make this ahead of time?
Yes! Since it needs time in the fridge to set anyway, this brownie pie is great for making several hours or even the day before you want to serve it.
Can I Freeze it?
Yes! You can freeze leftovers or the entire pie! Make sure to wrap it in plastic wrap really well or place in a freezer safe, airtight container. Peanut Butter Brownie pie will stay fresh in the freezer for about a month.
More Chocolate Peanut Butter Recipes to Try!
- Chocolate Peanut Butter Chip Cookies
- No-Bake Chocolate Peanut Butter Pie
- Chocolate Peanut Butter Icebox Cake
- Chocolate Peanut Butter Cup Cookies
- Scotcharoos
If you try this recipe, I would love it if you would give it a star rating and leave me a comment. 🙂 The printable recipe card is below. Have a great day!
Peanut Butter Brownie Pie
Ingredients
- 1 box brownie mix
- 2 eggs
- 1/2 cup oil
- 1/4 cup water
- 3/4 cup heavy cream
- 1/2 teaspoon vanilla
- 1/2 tablespoon cornstarch
- 12 oz cream cheese softened
- 3/4 cup smooth peanut butter
- 2 cups powdered sugar
- 1 teaspoon vanilla
- chocolate sauce
- salted peanuts
Equipment
Instructions
- Preheat oven to 350 degrees or temperature on back of brownie box. Lightly grease a 9 or 10-inch spring form pan and set aside.
- In large bowl, mix brownie batter according to package directions. Pour into prepared pan and bake 30-40 minutes or until set. Look on the back of the box for the time it takes to bake a 9×9 square pan of brownies-that’s a good time to start off with and then go from there. Remove brownies from oven and cool completely.
- In a stand mixer, whip heavy cream with vanilla and cornstarch until firm peaks form. Scrape whipped cream into smaller bowl and set aside. In the same stand mixer bowl (no need to wash!), whip cream cheese and peanut butter together until combined. Stir in powdered sugar and vanilla. Scrape sides and whip again for 1 minute. Carefully fold in whipped cream. Scoop peanut butter mixture onto cooked brownie and smooth the top. Refrigerate until set, at least 2 hours.
- When you are ready to serve, remove sides of spring form pan. Cut into pieces and drizzle with chocolate sauce and salted peanuts.
Awesome dessert. Everyone loved so much i am making again. Box brownies a great short cut.
Wow, looks great! I am making it this weekend!
Fabulous! Very creamy & rich. Q
Peanut Butter Brownie Pie is wonderful and so yummy.
I made this awhile ago. It was amazing. I need to find an excuse to make it again.
This is officially my next Birthday treat! Every year I make something decadent for my birthday, this certainly fits the bill!
Any way to substitute for the heavy cream?
Disappointed it starts with a boxed mix… Any difference if I choose to make a homemade brownie?
My 10 year old and I made this last night for her 4H baking contest and she won first place! Thank you for the awesome recipe that will for sure be made again at our house!
Phew! Good to know I am not the only one that eats chocolate chips on a spoon of peanut butter! 🙂
My son shares my loves pb and chocolate and his birthday is in two weeks, so this looks like a great birthday cake!! Can’t wait to try it!
My husband favorite candy is peanut butter cups. His birthday is tomorrow so guess what we will be having!! I saw this a while ago and now have a great reason to make it. I’m drooling just thinking about it! Hope I can get it to turn out. Thanks Lauren.
Just found your blog from Eat Live Run and so glad I did… this looks amazing!
This cake looks so good! Love your blog! Am def adding you to my favorites! xoxo
my favorite way to eat chocolate is with peanut butter 🙂 this looks so decadent and delicious!!
congrats to your 2 year old! that is an accomplishment! (for both of you!)
I just saved this in my Tasty Kitchen Recipe Box!
It looks sooooo good! 🙂
Um, yes please!!! This looks like a mad combination of that brownie cookie thing and that ridiculous PB pie. Both of them smooshed together!! Brilliant.
This cake looks so tasty. I’m also obsessed with the peanut butter chocolate combination. Yum!
What a great looking cake! Love the picture. Congrats on the potty training.
Yeah, this was pretty darn heavenly…..
This is absolutely amazing, Lauren. I am bookmarking this to make for my friend’s birthday – she’s a huge fan of chocolate and pb.
This look so easy and so delicious! My husband loves peanut butter anything so I’ll have to try this one.
Oh yum! I’m definitely making this!
By the way, I’m a bit confused, why would you stop stop desserts and start making food with nutritional value? My brain doesn’t compute – all it knows is sugar = good, no sugar = bad!
Mmmmm, this looks just perfect! Lovely photos too Lauren 🙂