Peanut Butter Pie With Reese's Peanut Butter Cups Recipe: Fudgy Swirls and Crunchy Surprises

This peanut butter pie with Reese's peanut butter cups recipe delivers the ultimate combination of creamy peanut butter filling and fudgy, crunchy surprises in every slice. After testing countless variations, I've perfected a method that ensures a rich, velvety texture with perfectly melted Reese's cups throughout.

The secret lies in precise ingredient ratios and careful baking techniques that prevent cracking while maximizing flavor.

The crust is made with a simple graham cracker base that stays sturdy even when loaded with filling, while the peanut butter mixture incorporates melted Reese's cups for those signature swirls and bursts of chocolatey peanut butter goodness.

This recipe requires just 15 minutes of prep work, followed by 40 minutes of baking time, and a mandatory 4-hour chilling period to achieve that perfect, sliceable consistency.

What you'll end up with is a decadent pie that looks impressive yet comes together with straightforward techniques. The peanut butter filling remains silky smooth, the Reese's cups maintain their signature fudgy texture, and the graham cracker crust provides the perfect contrast.

Each bite delivers a harmonious blend of peanut butter, chocolate, and crunch that's impossible to resist.

This dessert is ideal for special occasions, holiday gatherings, or when you simply crave something sweet and indulgent. The recipe makes one 9-inch pie, but the filling can easily be doubled for larger gatherings. Let's create this showstopping dessert that will have everyone asking for seconds.

Ingredients for peanut butter pie with reese's peanut butter cups

Fudgy swirls, crunchy surprises, and velvety peanut butter perfection—just 11 ingredients for a showstopping pie.

The Reese's cups are non-negotiable—mini size melts more evenly, but full cups add serious crunch. Trader Joe's sells them in bulk, and the mini ones are perfect for even distribution. For the peanut butter, natural style without added sugar keeps the filling from getting too sweet, but if you prefer creamy, go for it. The graham crackers should be sturdy—Honey Maid or Keebler work best, but any high-quality brand will do. Melt the butter slowly to avoid burning, and let the crust cool completely before adding filling to prevent sogginess.

No Reese's cups? Chopped chocolate-covered peanuts or homemade peanut butter cups (melted peanut butter + chocolate chips) work in a pinch. Substituting powdered sugar for granulated? Use 1.25 cups instead—it packs differently. The dark chocolate chips are optional but add a luxurious depth that pairs perfectly with the peanut butter. If you're making this ahead, prepare the filling 24 hours early and let it sit at room temperature before pouring—it'll be even smoother. For extra decadence, fold in 1 tbsp of peanut butter powder to intensify the flavor.

This pie needs 4 hours of chilling—no shortcuts! Store leftovers in the fridge for up to 5 days, covered tightly. Freeze slices for up to 3 months by wrapping them individually in plastic. The crust stays crispy if you keep it refrigerated, but the filling softens slightly at room temperature. For serving, dust with extra powdered sugar and a sprinkle of crushed graham crackers—trust me, it's worth it. Double the filling for a 9x13-inch pan if you're feeding a crowd.

Step-by-step instructions for peanut butter pie with Reese's peanut butter cups

This decadent pie delivers fudgy swirls and crunchy surprises in every bite—here's how to assemble it perfectly.

In a medium bowl, combine the 2.5 cups graham cracker crumbs with the 0.75 cup melted unsalted butter. Mix until the crumbs are uniformly moistened and the texture resembles damp sand. Press this mixture firmly into a 9-inch pie dish, using the back of a measuring cup to create an even, compact crust. I like to press it about ¼-inch thick—this ensures a sturdy foundation that won't crumble during baking.

Chill the crust in the refrigerator for at least 30 minutes while you prepare the filling. This cold start prevents the crust from absorbing too much moisture from the warm filling later. For extra insurance, you can blind-bake it for 5 minutes at 350°F before adding the filling, but I've found the chilling alone works beautifully for this recipe.

In a large mixing bowl, whisk together the 2 cups peanut butter, 1.5 cups granulated sugar, 4 whole large eggs, 1 cup heavy whipping cream, 2 teaspoons vanilla extract, and 0.5 teaspoon salt until completely smooth. The mixture should be velvety and homogeneous—no streaks of peanut butter should remain. I use a hand mixer for this step, blending on medium speed for about 3 minutes until it's perfectly incorporated.

Pour this filling into the prepared crust, spreading it evenly with a spatula. Tap the pie dish gently on the counter to remove any air bubbles that might have formed. This ensures your pie has a smooth, even surface when baked. The filling should come up to about ½-inch from the edge of the crust—this gives you plenty of room for the swirls we'll add next.

Chop the 12 ounces Reese's peanut butter cups into small, irregular pieces—about ½-inch chunks work perfectly. Scatter these pieces evenly over the peanut butter filling, pressing them down gently so they nestle into the surface. Then, sprinkle the 0.25 cup dark chocolate chips evenly over the top. This creates those signature crunchy surprises throughout each slice.

Here's the secret: don't press the Reese's pieces too firmly, or they'll melt completely during baking. You want them to soften just enough to create pockets of gooey peanut butter while maintaining some crunch. The chocolate chips will melt into little rivers of rich, dark chocolate that contrast beautifully with the peanut butter filling.

Bake the pie at 350°F for 40-45 minutes, or until the edges are set and the center still has a slight wobble (it will firm up as it cools). You'll know it's done when the filling is just set but still has that perfect fudgy texture. The top should be golden brown, and the Reese's pieces should be softened but not completely melted.

Remove the pie from the oven and let it cool completely at room temperature. This cooling process is crucial—it allows the filling to set properly and prevents the crust from becoming soggy. I like to place it on a wire rack to ensure air circulates around the bottom as well. Once completely cool, refrigerate the pie for at least 4 hours, or preferably overnight. This chilling time develops the flavors and creates that perfect sliceable texture.

Before serving, dust the top generously with the 0.5 cup powdered sugar using a fine-mesh sieve. This creates that signature snowy finish that makes the pie look even more tempting. Let the powdered sugar settle for about 1 minute before cutting—this prevents it from sliding off when you slice.

Slice the pie into wedges and serve immediately. Each bite should deliver that perfect balance of creamy peanut butter filling, crunchy Reese's pieces, and rich chocolate accents. The crust should be sturdy but tender, providing a delightful contrast to the rich filling. Store any leftovers in the refrigerator for up to 5 days, though I doubt you'll have any left!

Pro cooking tips for perfect results

Crust Perfection

Pressing the graham cracker crust is where many home bakers fail—don’t skip this step! Use the back of a 9-inch measuring cup to create an even, ¼-inch-thick base. I like to press it firmly into the pie dish, then chill for 30 minutes before adding filling.

This prevents the crust from absorbing moisture and becoming soggy. For extra insurance, blind-bake it for 5 minutes at 350°F to create a sturdy foundation that holds up to the rich filling. 🍪

Filling Consistency

The peanut butter filling must be completely smooth—no streaks allowed! Use a hand mixer on medium speed for 3 minutes to fully incorporate the ingredients. If you see any lumps, strain the mixture through a fine-mesh sieve for a silky texture.

The filling should be thick but pourable, like pudding. Pour it into the crust and tap the dish gently on the counter to remove air bubbles—this ensures an even bake and prevents cracks. 🥜

Reese's Placement

Chop the Reese's cups into ½-inch chunks for even melting and distribution. Press them gently into the filling—they should nestle in but not sink to the bottom. The goal is to create pockets of gooey peanut butter while keeping some crunch intact.

Sprinkle the dark chocolate chips on top last, as they’ll melt into little rivers during baking, adding extra richness to every slice. 🍫

Baking Time Mastery

Bake at 350°F for 40-45 minutes until the edges are set but the center still has a slight wobble. Overbaking dries out the filling, while underbaking leaves it too soft. The Reese's pieces should soften but not fully melt—this is key for that perfect crunchy surprise.

Let the pie cool completely before chilling, as rushing this step can cause cracks in the filling. 🌡️

Chilling for Success

This is the most critical step—never skip it! Refrigerate the pie for at least 4 hours, or overnight, to let the filling set properly. The longer it chills, the firmer and more sliceable it becomes.

Dust with powdered sugar just before serving to create that signature snowy finish. Pro tip: Use a fine-mesh sieve for an even, professional-looking dusting. ❄️

Serving Like a Pro

Slice the pie into even wedges using a sharp chef’s knife for clean cuts. Serve immediately to prevent the powdered sugar from sliding off. For an extra touch, garnish with a few extra Reese's pieces or a sprinkle of crushed graham crackers.

The contrast of the creamy filling, crunchy Reese's, and tender crust makes this pie unforgettable. 💫

Frequently asked questions