Name: Giant Reese’s Peanut Butter Cup
Prep time: 35 min
Total time: 4 h 35 min
Cuisine: American
Ingredients: 24 chocolate sandwich cookies crushed; 6 tablespoons unsalted butter melted; 1 cup creamy peanut butter; 8 ounces cream cheese softened; 1 cup powdered sugar; 1 teaspoon vanilla extract; 1 cup heavy whipping cream cold; 1 cup semi sweet chocolate chips; 1/2 cup heavy cream for ganache; 1 cup mini Reese’s peanut butter cups chopped; 2 tablespoons chocolate shavings

If you’re someone who believes there’s no such thing as too much peanut butter and chocolate, then this Giant Reese’s Peanut Butter Cup is about to become your ultimate dessert fantasy. I made this for a weekend movie night with friends, and the moment I sliced into the rich, layered beauty, everyone went quiet with that first bite—the kind of silence that only happens when something truly indulgent hits the table. This isn’t just a dessert, it’s a celebration of everything right with the peanut butter and chocolate combo.

I love how ridiculously fun this is to make. It looks like a mega version of the classic treat we all know, but what makes it even better is the creaminess of the peanut butter filling, the deep chocolate ganache drizzle, and the extra toppings that give it texture and crunch. Whether it’s a birthday, a holiday gathering, or just a Tuesday, this giant peanut butter cup is bound to steal the show.

Why You’ll Love This Giant Reese’s Peanut Butter Cup

It’s everything you crave in a peanut butter cup, just supersized and more luxurious. The crust is made from crushed chocolate cookies for that rich, crunchy base. The peanut butter layer is whipped to perfection—smooth, creamy, and just the right amount of sweet. And the chocolate? A silky ganache that drips decadently down the sides. Topped with chopped Reese’s, chocolate curls, or even peanut butter chips, it’s a showstopper in both looks and taste.

Whether you’re a Reese’s fan or just need a dessert that makes a serious impression, this recipe checks all the boxes: no-bake, easy to assemble, and wildly satisfying.

What Kind of Chocolate Should I Use for the Ganache?

Use a high-quality semi-sweet or dark chocolate for best results. Milk chocolate can be a bit too sweet when paired with the peanut butter filling, but it’s fine if you prefer a lighter taste. If you’re making the ganache, pair it with heavy cream to get that glossy, pourable texture that solidifies into a fudgy finish.

Options for Substitutions

Nut-free option: Swap the peanut butter for sunflower seed butter or cookie butter.
Crust alternative: Instead of chocolate cookie crust, try a graham cracker base or even a brownie bottom.
Dairy-free version: Use dairy-free cream cheese, coconut cream for the ganache, and vegan chocolate chips.
Toppings: Mini pretzels, crushed peanuts, or white chocolate drizzle all work beautifully.

Ingredients for this Giant Reese’s Peanut Butter Cup

Chocolate sandwich cookies: These are the base of the crust. Crushing them finely and mixing with melted butter gives a perfect, firm layer.
Unsalted butter: Used to bind the cookie crust and adds richness to the peanut butter filling.
Creamy peanut butter: The star ingredient. Choose a smooth, no-stir variety for best texture.
Cream cheese: Adds tang and structure to the filling, making it firm yet fluffy.
Powdered sugar: Sweetens the filling and keeps it smooth.
Vanilla extract: Enhances all the other flavors and gives a bakery-style aroma.
Heavy whipping cream: Whipped and folded in for that ultra-creamy texture.
Semi-sweet chocolate chips or bars: For the ganache layer—melts smoothly and balances the sweetness.
Heavy cream (again): Needed to make the ganache pourable and luscious.
Mini Reese’s cups and chocolate shavings: For topping. Adds texture and visual impact.

Step 1: Make the Crust

Crush chocolate sandwich cookies in a food processor until they resemble fine crumbs. Mix with melted butter until combined. Press the mixture into the bottom and up the sides of a springform pan. Chill in the freezer while you prepare the filling.

Step 2: Prepare the Peanut Butter Filling

Beat the softened cream cheese until smooth. Add peanut butter, powdered sugar, and vanilla extract. Mix until fully combined and fluffy. In a separate bowl, whip the heavy cream until stiff peaks form, then gently fold it into the peanut butter mixture to create a light mousse-like texture.

Step 3: Add a Chocolate Layer (Optional but Decadent)

Melt some semi-sweet chocolate and spread it over the chilled crust before adding the peanut butter filling. Let it set for 5-10 minutes in the fridge. This adds a rich, fudgy surprise layer at the base.

Step 4: Assemble the Layers

Spoon the peanut butter filling over the crust (or over the optional chocolate layer). Smooth the top with a spatula. Chill in the fridge for at least 4 hours, or until fully set. Overnight is ideal.

Step 5: Make the Chocolate Ganache

In a saucepan, heat the heavy cream just until steaming. Pour it over chopped semi-sweet chocolate and let it sit for a minute. Stir until smooth and glossy. Let it cool slightly before pouring over the chilled peanut butter layer.

Step 6: Add the Toppings

Top the ganache with chopped mini Reese’s cups, chocolate curls, shavings, or peanut butter chips while the ganache is still soft. Return to the fridge to set the toppings.

Step 7: Slice and Serve

Remove the dessert from the springform pan and slice with a warm, sharp knife for clean edges. Serve chilled or at room temperature for a slightly softer texture.

How Long to Prepare the Giant Reese’s Peanut Butter Cup

Prep Time: You’ll need about 30–35 minutes to pull everything together. That includes crushing the cookies, whipping up the filling, melting chocolate, and layering it all. None of the steps are complicated, but give yourself room to enjoy the process.

Chill Time: At least 4 hours in the refrigerator is essential for everything to set properly. If you can chill it overnight, even better. This helps the layers firm up for perfect slicing and texture.

Tips for Perfect Giant Reese’s Peanut Butter Cup

Use room temperature cream cheese to avoid lumps in the filling.
Whip the heavy cream separately and fold it in gently to maintain fluffiness.
Chill the crust while prepping the filling so it firms up and holds the layers better.
Let the ganache cool slightly before pouring it on top to avoid melting the peanut butter layer.
Use a hot knife (run under hot water and wiped dry) to slice cleanly through the layers.

Watch Out for These Mistakes While Cooking

Overmixing the filling: This can make it too dense or cause the whipped cream to deflate.
Adding ganache when too hot: It will melt and collapse the top of your peanut butter layer.
Using natural peanut butter: These can be too oily or runny, affecting texture.
Skipping chill time: The dessert won’t hold its shape when slicing.
Using low-quality chocolate: It can taste waxy or not melt smoothly for the ganache.

What to Serve With Giant Reese’s Peanut Butter Cup?

1. Cold Brew Coffee

The bold bitterness of cold brew helps cut the richness of the dessert.

2. Vanilla Ice Cream

A scoop on the side adds creaminess and cool contrast.

3. Fresh Strawberries

Bright and tart, they bring balance to all the chocolate-peanut butter goodness.

4. Salted Pretzels

Perfect for dipping into the ganache or crunching alongside a slice.

5. Whipped Cream with Cocoa Dusting

Adds a light, airy topping to soften each bite.

Storage Instructions

Refrigerator: Store the Giant Reese’s Peanut Butter Cup covered in the fridge for up to 5 days. A cake carrier or loosely wrapped foil works great to keep it fresh without smashing the toppings.

Freezer: You can freeze it (sliced or whole) for up to 1 month. Wrap slices individually in plastic wrap, then foil. Thaw overnight in the fridge before serving.

Serving after storage: Let it sit out for 10-15 minutes at room temperature before slicing to allow the layers to soften slightly.

Estimated Nutrition (per slice, based on 12 servings)

Calories: 520
Total Fat: 34g
Saturated Fat: 16g
Cholesterol: 45mg
Sodium: 220mg
Total Carbohydrates: 47g
Fiber: 3g
Sugars: 35g
Protein: 7g

Frequently Asked Questions

What size pan should I use?

An 8 or 9-inch springform pan works best. It allows for easy release and clean edges.

Can I make this in advance?

Yes! In fact, it’s best made a day ahead to allow proper chilling and layering.

Is it no-bake?

Yes, this dessert is 100% no-bake. You only need to melt chocolate for the ganache.

Can I reduce the sugar?

You can cut back slightly on the powdered sugar, but keep in mind it also helps firm up the filling.

What if I don’t have a food processor?

Use a zip-top bag and a rolling pin to crush cookies for the crust.

Conclusion

This Giant Reese’s Peanut Butter Cup is a true masterpiece for anyone obsessed with the peanut butter and chocolate duo. It’s indulgent without being overly complicated and delivers the kind of rich, creamy, crunchy bite that satisfies every craving. Whether you’re making it for a special occasion or just because you deserve it, this dessert is guaranteed to impress—and disappear fast.