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Peanut butter pie is rich and decadent, combining creamy peanut butter and sweet chocolate in each bite. This over the top dessert features a peanut butter Oreo cookie crust, peanut butter filling, Reese’s Pieces, and homemade chocolate ganache. It’s unbelievable!

slice of peanut butter pie on a wood plate with a fork

There’s no flavor duo quite like peanut butter + chocolate. We’ve made chocolate peanut butter cheesecake bars, no-bake chocolate peanut butter bars, and chocolate peanut butter snack bars, to name a few. My chocolate chip cookie layer cake is even filled with a chocolate peanut butter frosting! Today, we’re adding another recipe to the chocolate peanut butter mix: truly unbelievable peanut butter pie.

There’s a lot to cover, so let’s dive right in.

overhead image of peanut butter pie in a glass baking dish

This Is Unbelievable Peanut Butter Pie

The layers! The textures! This might just be the richest dessert I’ve ever made. Today’s recipe is a new twist on classic peanut butter pie with a crunchy peanut butter Oreo cookie crust, colorful Reese’s Pieces candies, creamy peanut butter filling, and smooth chocolate ganache. It’s a peanut butter lover’s dream come true.

Here’s why you’ll love it:

  • Totally indulgent
  • Quick and easy to prepare
  • Made with only 10 ingredients
  • Tons of texture in each bite
  • Perfect for birthdays and celebrations
  • A great make-ahead recipe
spreading Oreo cookie crust into glass pie dish

4 Parts to Peanut Butter Pie

  1. Peanut Butter Oreo Crust
  2. Peanut Butter Filling
  3. Chocolate Ganache
  4. Reese’s Pieces

Though the written recipe is below, let me walk you through each part so you understand exactly what you’re doing.

folding whipped cream into peanut butter filling in a glass bowl

Peanut Butter Oreo Crust

It wouldn’t be peanut butter pie without an Oreo crust, but let’s use peanut butter Oreos! Regular Oreos work just as well, but peanut butter Oreos add another layer of peanut butter flavor. Pulse the Oreos (the whole Oreo including the chocolate cookies and the filling) into a fine crumb, then combine the Oreo crumbs with a little melted butter. Just 2 ingredients, so easy.

Press the mixture firmly into a pie dish and bake the crust. I recommend beginning with this step so the crust has time to cool down before assembling. This is the only layer that requires baking—the rest of the recipe is completely no-bake! I love making this pie in the warmer summer months when our kitchen welcomes a break from the hot oven.

peanut butter filling in a glass bowl

Peanut Butter Pie Filling

This peanut butter filling is about as decadently rich as we can get. It’s made with just 5 ingredients including heavy cream, peanut butter, cream cheese, confectioners’ sugar, and vanilla extract. You can’t really taste the cream cheese; rather, you truly just taste peanut butter. It has as much peanut butter flavor as these peanut butter balls and these super soft peanut butter cookies.

You’ll begin by whipping the heavy cream into whipped cream. In a separate bowl, mix the other 4 ingredients together, then gently fold the whipped cream into the peanut butter mixture. The result is a creamy, airy peanut butter filling.

spreading peanut butter filling into Oreo crust in a glass pie dish

Chocolate Ganache Topping

You only need 2 ingredients for the chocolate ganache topping: chocolate and heavy cream. You’ll simply pour warm cream over chocolate and stir. Use a quality chocolate because it’s where all of the flavor comes from. I would avoid using chocolate chips, which contain a stabilizer—use the real deal. Pure chocolate never lets you down. Never! See my chocolate ganache page if you need extra help with it.

You’ll want to make the ganache before the peanut butter layer because it must fully cool down prior to pouring over the peanut butter filling. This time also allows the ganache to thicken, creating a fudge-like consistency when the pie is ready to serve.

Crushed Reese’s Pieces

You’ll find crushed Reese’s Pieces in two places—on top of the Oreo crust and sprinkled on top of the chocolate ganache. They add a little crunch, a little color, and that little something extra! Instead of Reese’s Pieces, try crushed M&Ms, or skip them altogether.

spreading chocolate ganache onto peanut butter filling
overhead image of peanut butter pie in a glass baking dish
slice of peanut butter pie on a wood plate with a fork

Like peanut butter cup tart, the only baking we’ll do is for the crust. Other than that, the refrigerator does all the work. The pie must set up in the refrigerator for 5–6 hours. Overnight would be wonderful, but I’ve made this peanut butter pie twice with just 5 hours of chill time. Peanut butter perfection each time. This dessert is always fun for birthdays, but I’ve served it on Father’s Day, Mother’s Day, Valentine’s Day, anniversaries, a random Sunday (why not?), you name it. It’s always devoured!

Quick Peanut Butter Pie Video

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overhead image of peanut butter pie in a glass baking dish

Unbelievable Peanut Butter Pie

  • Author: Sally
  • Prep Time: 1 hour
  • Cook Time: 10 minutes
  • Total Time: 7 hours
  • Yield: 1 9-inch pie 1x
  • Category: Pie
  • Method: Baking
  • Cuisine: American

Description

The most unbelievable peanut butter pie! Complete with an Oreo cookie crust, Reese’s Pieces, and chocolate ganache, this recipe is over the top in the best way.


Ingredients

Scale

Oreo Crust

  • 20 peanut butter Oreos (or regular Oreos; Double Stuf is ok!)
  • 5 Tablespoons (75g) unsalted butter, melted

Ganache

  • 3/4 cup (180g) heavy cream
  • 6 ounces (170g) semi-sweet chocolate, coarsely chopped

Peanut Butter Filling

  • 3/4 cup (180ml) heavy cream
  • 8 ounce (225g) block cream cheese, softened to room temperature
  • 1 and 1/2 cups (310g) creamy peanut butter
  • 3/4 cup (90g) confectioners’ sugar
  • 1 teaspoon pure vanilla extract
  • 1 cup (200g) Reese’s Pieces, crushed

Instructions

  1. Preheat the oven to 350°F (177°C). Spray a 9-inch pie dish with nonstick spray or grease lightly with butter.
  2. Make the crust: In a food processor or blender, pulse the whole Oreos into a fine crumb. Stir the cookie crumbs and melted butter together, then press into the pie dish. Bake for 9-10 minutes. Allow to cool as you prepare the rest.
  3. Make the ganache: Place chopped chocolate in a medium bowl. Heat the cream in a small saucepan over medium heat, stirring occasionally. Once it begins to boil, immediately remove from heat then pour over the chocolate. Stir gently until the ganache is smooth. Set aside and allow to cool to room temperature. During this time, it will slowly thicken as well.
  4. Make the filling: Using a hand mixer or a stand mixer fitted with a whisk attachment, beat the heavy cream on medium-high speed until stiff peaks form, about 5 minutes. Spoon the whipped cream into a bowl and set aside. Using the same mixing bowl (no need to rinse clean!), beat the cream cheese, peanut butter, confectioners’ sugar, and vanilla extract together on medium-high speed until combined. Mixture will be thick. Fold in the whipped cream until smooth. be gentle, you don’t want to deflate that cream.
  5. Sprinkle half of the Reese’s Pieces on top of the cooled crust. Spread peanut butter filling evenly on top, then spread ganache on top of filling. Sprinkle the rest of the Reese’s Pieces on top.
  6. Chill the pie in the refrigerator for 5-6 hours or even overnight. Slice and serve cold.

Notes

  1. Make Ahead & Freezing Instructions: You can get started on the crust in step 2 and the ganache in step 3. You can keep both in the refrigerator overnight if you’re getting started the day before. Cover both tightly. This pie can be frozen up to 3 months. It’s tasty frozen or you can let it thaw overnight in the refrigerator before serving.
  2. Peanut Butter: Use a conventional (processed) smooth peanut butter like Jif creamy or Skippy creamy. I do not suggest using natural style or oily peanut butter; both cause the filling to separate and/or turn greasy.

Keywords: peanut butter pie

Reader Questions and Reviews

  1. Question – can I use semi-sweet chocolate chips for the ganache? if yes, how many cups would that be for 6 oz.? Thanks!

    1. For the best tasting ganache, I do recommend the pure chocolate. But if you’re using chocolate chips, you’ll need about 1 cup.

  2. Sally, I made this pie for my mom’s birthday on Sunday and it was *incredible*! My mom is allergic to gluten, so I made the crust with Trader Joe’s gluten-free Joe Joe’s instead of Oreos–it was delicious and tasted just like Oreo crust. The whole family went on and on about how great it was. Thanks for this amazing treat!

  3. Made this for my peanut butter loving husband! Unfortunately I over-whipped the cream and didn’t know how to bring it back. Luckily I had some cool whip and subbed that instead. Turned out great.

  4. Made this pie earlier this week for friends coming over for dinner. It was a huge hit. I took the leftovers into work the next day and it was all eaten by lunch. Instead of the whipped cream and powdered sugar, I used whipped topping. I can totally see myself making this again. Very popular with a familiar flavor profile.

  5. I took this to a dinner last night (along with your key lime pie) and it was a huge hit!  I will be making this again.

  6. Hi Sally!

    Do you think this would work in a 9 inch tart pan?

    Thank you!

    1. Hi Cassie! There will be too much filling and crust, so I don’t recommend it. Unless you reduce both down a little OR make 2 tarts out of the recipe.

  7. Hi Sally! Do you think this would work in a springform pm instead of a pie dish? I’m wanting to do something fun for my husband’s birthday and he would love this but he’s not a pie guy per se. I’m thinking if I did the springform it would give it a Cheesecake feel. 

  8. Hey Sally!
    Does the whipping/heavy cream need to be warmed to room temperature before whipping it and making the filling, or is it ok to use it cold? I know room temp dairy is usually the rule for baking, but this pie is a little different, so I wanted to check.
    Thanks!

  9. Have you ever made these in a cupcake pan? I’m wanting to make them for a school activity and individual serving sizes would be best. Any recommendations for quantity of crust mixture per cupcake well and bake time (for the crust)? Thanks!

    1. Hi Jennifer! I haven’t. Though I’d use about 1 – 1.5 Tbsp of crust per cupcake and pre-bake for 8 minutes.

  10. Excellent! I’ve made many peanut butter pies and this is the best one so far. The peanut butter is the highlight. The texture is like silk. It’s rich, but not overly sweet. There are a few steps to the prep, but none is time-consuming nor difficult. The detailed recipe instructions and pictures are very helpful. The filling seemed a bit thick and grainy after beating the cream cheese, peanut butter and sugar together, but once the whipped cream was folded in, it smoothed out and was nice and light. The texture became more silky after chilling and freezing. I preferred it right from the freezer, but others thought it was silkier after it had thawed. I used the weight measures for the filling, and instead of a 9-inch pie plate I used an 8-inch springform pan. The filling came to within 1/4 inch of the top of the pan, leaving just enough room for the ganache. I subbed coarsely chopped mini peanut butter cups for the Reese’s Pieces, and sprinkled all of them on top of the ganache. I also added a white chocolate peanut butter swirl to the ganache. This is an outstanding make-ahead dessert!

  11. Another amazing peanut butter recipe! So creamy, dreamy and easy to put together!

  12. This looks amazing! Planning on making this for the 4th of July as it’s also my husbands birthday. Do you think I could make this in a mini cheesecake pan? Would love to make it into a dessert that’s already individually sized. Do you think the structure would hold up in that type of pan? Thanks!

    1. Hi Kim! You can arrange these layers in a springform pan or a few mini springform pans– the texture will be great and the pie will hold up nicely. It will be easier to cut, too!

  13. Do you think I can omit the cream cheese and come out with a similar result? Looks great!

    1. Hi Heather! The peanut butter filling won’t be as thick and creamy without it. I fear it wouldn’t set properly.

  14. Hi Sally!
    Can I use Graham Chocolate Crackers for the crust instead of Oreos? And if so, what quantity would you use? 🙂

    1. Absolutely! You want about 1 and 1/2 cups of graham cracker crumbs, so about full 12 graham crackers.

  15. Delicious!! I didn’t change anything and it turned out perfect. Thanks!

  16. Hi Sally – I want to use your recipe but scale it up to a 12 x 17 slab pie. Do you think doubling the recipe would work? My husband wants this pie for his birthday, and I trust your recipes so wanted to use yours, but his party is a tad large at 200 people + (!) so instead of making a trillion 9″ pies, I was going to try the slab pie route. Any thoughts or suggestions are welcome! And I hope Jude is doing well. ❤️ Thank you!

    1. Hi Janet! This recipe yields a lot of filling, so doubling it for a 12×17 inch pan should work very nicely. I recommend making a few sheet pans of it for that many people. (Sounds like a fun party!!)

  17. Just got done making this with Smucker’s natural peanut butter then saw the note at the bottom about not using natural peanut butter. Maybe modify the recipe to put that note at the top? Fingers crossed it comes out ok.

    1. Just coming back to say it was amazing, didn’t separate or get overly greasy. Amazing recipe!

  18. This pie really is unbelievable – it’s so delicious that it should be declared illegal! I omitted the Reese’s Pieces and made it in a nine inch spring form pan – it looks absolutely lovely when sliced.

  19. We couldn’t believe how awesome this pie was! I made it with a Biscoff cookie crumb crust and it was fantastic. Thank you Sally.

  20. I made this for a coworker’s birthday celebration and it was a great success!

  21. This is by far the best peanut butter pie I’ve ever made or eaten!! It is to die for! I made it exactly to your recipe. It is a little time consuming, but it’s worth every minute! THANKS!

  22. I had the same problem did not set up and the sides of the crust all fell down into the middle bottom portion I wonder if it was because I used a glass pie Pan. Followed instructions to the letter

  23. The filling was way too dense. I thought it would be lighter. It really disappointed our 9 year old who is getting into baking. It was her first pie and she didn’t love it. I love peanut butter pie — but I wouldn’t use this recipe again.

  24. Absolutely delicious! I made 2 pies because a friend of my sisters wanted to pay me to make a peanut butter pie and I also made a test one. I’ve never tried or made it before, but it was delicious! Gave leftovers to my brother in law’s family, and they said without a doubt it was the best peanut butter pie they had ever made! Home run and thanks for the recipe!!

  25. I’m new(ish) to the baking world and absolutely love your recipes! The additional links (like to Chocolate Ganache – that’s a new one for me) make me feel confident before I ever step into the kitchen. I will be making this for my boyfriend’s birthday. He’s just as excited to try it as I am!

  26. A must try for peanut butter fans! This was seriously one of the most delicious desserts I have ever made. It was on par with a restaurant dessert that would probably cost you $8 a slice. I made no changes to the recipe and I would definitely make it again. Thanks Sally for another great recipe!

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