Oh my gosh, have you ever bitten into a warm cookie and discovered a melty peanut butter cup surprise inside? Thatโs the exact moment I fell in love with these Peanut Butter Cup Stuffed Cookies!

I remember making them for the first time during a hectic week. I needed something quick but decadent to bring to a potluck. The combination of rich chocolate cookie dough hugging a gooey Reeseโs center? Absolute magic. And the best part? Theyโre ridiculously easy to make with just a few simple ingredients.
No fancy techniques, no hours of chilling dough, just pure, peanut buttery bliss in under 40 minutes. Trust me, once you try these, youโll be hooked. Theyโre the kind of treat that disappears fast, whether itโs a Tuesday night craving or a holiday cookie swap. Letโs get baking!
Table of Contents
Why Youโll Love These Peanut Butter Cup Stuffed Cookies
Listen, I donโt just make these cookies, I crave them. Hereโs why you will too:
- Foolproof magic: Cake mix dough means no measuring flour or worrying about ratios, just dump, mix, and stuff!
- Surprise factor: That moment when someone bites in and discovers the melty peanut butter center? Priceless.
- Emergency dessert hero: From oven to table in under 40 minutes when unexpected guests show up.
- Sweet-salty perfection: The rich chocolate cookie balances the creamy peanut butter cups like they were made for each other (because, well, they were).
- Crowd pleaser: Iโve never brought these to a party without someone asking for the recipe, they vanish every time.
Seriously, these cookies are happiness you can hold in your hand, and lick off your fingers afterward.
Ingredients for Peanut Butter Cup Stuffed Cookies
Okay, here’s the beautiful part, you only need four simple things to make these magical cookies happen (plus one fun extra if you’re feeling fancy):
- 1 box (18.25 oz) chocolate cake mix โ I use Devil’s Food for extra richness, but any chocolate variety works
- 6 tablespoons butter, melted โ Let it cool slightly so it doesn’t cook the eggs!
- 2 large eggs โ Room temperature helps them blend in smoothly
- 18 Reese’s Peanut Butter Cups (snack size) โ Keep them in the fridge so they don’t soften while you work
- 1/3 cup peanut butter chips (optional) โ For that gorgeous drizzle on top
Ingredient Notes & Substitutions
Short on time? Use store-bought cookie dough instead of cake mix, just flatten portions and wrap them around the cups. For fun twists, try dark chocolate peanut butter cups or mini cups (you’ll need about 36). Out of butter? Coconut oil works in a pinch, but your cookies will spread more. The peanut butter chips? Totally optional, but they make these look bakery-worthy!
Equipment Youโll Need
Grab these basics, you probably already have them in your kitchen:
- Mixing bowl โ Any medium-sized bowl will do
- Baking sheet โ Standard half-sheet pan is perfect
- Parchment paper โ Lifesaver for easy cleanup and no sticking
- Spatula or wooden spoon โ For mixing that dreamy dough
- Measuring spoons โ Just for the butter, since the cake mix does the heavy lifting
Thatโs it, no fancy gadgets required!
How to Make Peanut Butter Cup Stuffed Cookies
Alright, letโs get to the fun partโturning these simple ingredients into gooey, peanut butter-filled miracles! I promise, itโs easier than you think. Just follow these steps, and youโll have cookies thatโll make everyone think youโre a baking genius.
Step 1: Prep the Dough
First things first, preheat that oven to 375ยฐF (190ยฐC). Trust me, you donโt want to realize itโs not hot enough when your cookies are ready to go in! Now, grab your mixing bowl and dump in that chocolate cake mix.
Add the slightly cooled melted butter and crack in those eggs. Stir it all together with a wooden spoon or spatula until it forms this gloriously thick, fudgy dough. No fancy mixer needed here, just good old-fashioned arm power.
The dough should be sticky but hold together when you pinch it. If it feels too dry, add a teaspoon of water, but Iโve rarely needed to.
Step 2: Stuff the Cookies
Hereโs where the magic happens! Take about 2 tablespoons of dough and flatten it in your palm, I like to make a little well in the center with my thumb. Place one chilled peanut butter cup right in the middle (keep them cold so they donโt melt too fast!).
Now, gently wrap the dough around the cup, sealing it completely. Roll it lightly between your palms to smooth out any cracks. Pro tip: If the dough sticks to your hands, wet your fingers just a tiny bit, it helps! Repeat until all your peanut butter cups are snug in their chocolate blankets. Space them about 2 inches apart on a parchment-lined baking sheet. They wonโt spread too much, but they need a little breathing room.
Step 3: Bake & Cool
Pop those beauties into the oven and set a timer for 9 minutes. The tops should look crackly and the edges set, but the centers will still be soft, thatโs perfect! Theyโll keep cooking a bit as they cool. Let them sit on the baking sheet for 3-5 minutes before transferring to a wire rack.
This patience-testing step prevents broken cookies (learned that the hard way!). If youโre feeling extra, melt those peanut butter chips with a splash of oil in the microwave (20-second bursts, stirring in between) and drizzle over the cooled cookies. Then try not to eat them all in one sitting, I dare you!

Tips for Perfect Peanut Butter Cup Stuffed Cookies
After making these cookies more times than I can count (and taste-testing every batch, obviously), I’ve picked up some foolproof tricks:
- Chill those cups! Keep your peanut butter cups in the fridge until the last second, cold centers stay intact better during baking.
- Parchment paper is non-negotiable. No sticking, easy cleanup, and it helps prevent burnt bottoms. Wax paper? Nope, itโll smoke in the oven!
- Underbake slightly. Take them out when edges look set but centers seem soft; they firm up perfectly as they cool.
- Seal tight. Any cracks in the dough let peanut butter ooze out, press seams firmly and smooth with damp fingers.
- Freeze for later. Unbaked dough balls freeze beautifully; just add 1-2 minutes to baking time straight from the freezer.
The biggest rookie mistake? Eating them all before your family gets any. Not that I’d know anything about that…
Storing & Reheating Peanut Butter Cup Stuffed Cookies
These cookies taste best fresh, but if by some miracle you have leftovers (ha!), hereโs how to keep them happy: Store cooled cookies in an airtight container at room temperature for up to 3 days, layer them with parchment to prevent sticking.
For that just-baked magic, pop one in the microwave for 8-10 seconds until the peanut butter center gets oozy again. Want to prep ahead? Freeze unbaked dough balls for up to 2 months and bake straight from frozen, adding a minute or two. Just donโt blame me when your freezer stash mysteriously disappears!
Peanut Butter Cup Stuffed Cookies Nutrition
Okay, let’s be real, we’re not eating these cookies for their health benefits! But since I know some of you like to keep track (or need to for dietary reasons), here’s the scoop on what you’re getting in each delicious bite. These estimates are based on using the exact ingredients I listed, your numbers might vary slightly depending on brands or if you tweak the recipe.
- Serving Size: 1 cookie (about 2.5 oz)
- Calories: 180
- Sugar: 12g
- Sodium: 200mg
- Fat: 8g (3g saturated, 4g unsaturated)
- Carbohydrates: 24g
- Fiber: 1g
- Protein: 3g
A quick heads up, these numbers can change if you use different brands of cake mix or peanut butter cups. Homemade dough instead of cake mix? That’ll change things too. And obviously, if you go wild with the peanut butter chip drizzle (no judgment!), you’ll want to account for those extra goodies. But honestly? When that melty peanut butter center hits your tongue, I doubt you’ll be thinking about numbers, just pure joy!
FAQs About Peanut Butter Cup Stuffed Cookies
Iโve gotten so many questions about these cookies over the years. Here are the ones that pop up most often, along with my hard-earned answers:
Can I use mini peanut butter cups instead?
Absolutely! Mini cups work great, just use about 36 instead of 18 regular snack-size cups. The baking time stays the same, but you’ll get twice as many adorable two-bite cookies. Perfect for parties where people want to try “just one” (then inevitably go back for five more).
Why did my peanut butter ooze out while baking?
Oh no, been there! Usually, this happens if either: 1) The dough wasn’t sealed completely (check for cracks before baking), or 2) The peanut butter cups were too warm when you wrapped them. Always work with cold cups straight from the fridge, and really press that dough seam together. I sometimes pinch it like a dumpling for extra security.
Can I make these without cake mix?
Sure thing! Use your favorite chocolate cookie dough recipe, just portion it so each cookie gets about 2 tablespoons of dough. The cake mix version is my lazy-day lifesaver, but homemade dough makes these extra special. Pro tip: Chill the dough balls for 30 minutes before baking to prevent too much spreading.
How do I prevent the cookies from breaking when I move them?
Patience is key! Let them cool on the baking sheet for at least 3-5 minutes to set, that molten peanut butter center needs time to firm up. When transferring, slide a thin spatula under the whole cookie at once rather than lifting from one side. If one does break? Quality control snack time!
Can I freeze baked cookies?
You bet! Freeze cooled cookies in a single layer on a baking sheet first (so they donโt stick together), then transfer to an airtight container with parchment between layers. Theyโll keep for 2 months, thaw at room temp or microwave for 15 seconds to revive that gooey center. Though honestly? They rarely last that long in my house!
Share Your Peanut Butter Cup Stuffed Cookies
Nothing makes me happier than seeing your cookie creations! Did you add a sprinkle of sea salt on top? Try them with white chocolate peanut butter cups? Snap a pic and tag me @recipesbycharlotte (or whatever your handle is). I live for those melty-center close-up shots.
Leave a comment below telling me who you made these for (or letโs be real, how many you ate straight from the baking sheet). Your reviews help other bakers know what to expect, so donโt hold back, was the peanut butter perfectly gooey? Did your kids go nuts for them? Spill all the delicious details!
Print
Peanut Butter Cup Stuffed Cookies
- Total Time: 39 minutes
- Yield: 18 cookies 1x
- Diet: Vegetarian
Description
Delicious chocolate cookies stuffed with Reese’s Peanut Butter Cups for a sweet and salty treat.
Ingredients
- 1 box (18.25 oz) chocolate cake mix
- 6 tablespoons butter, melted
- 2 large eggs
- 18 Reeseโs Peanut Butter Cups (snack size)
- 1/3 cup peanut butter chips (optional, for decorating)
Instructions
- Preheat oven to 375ยฐF.
- Unwrap 18 peanut butter cups.
- Mix cake mix, melted butter, and eggs until combined.
- Cover each peanut butter cup with 2 tablespoons of dough, ensuring it is completely encased.
- Place on a baking sheet lined with parchment paper.
- Bake for 9 minutes until edges are set and tops start to crack.
- Cool on the sheet for a few minutes before transferring to a wire rack. Drizzle with melted peanut butter chips if desired.
Notes
- Use parchment paper for easy cleanup.
- Let cookies cool slightly before moving them to prevent breaking.
- Store in an airtight container for up to 3 days.
- Prep Time: 30 minutes
- Cook Time: 9 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cookie
- Calories: 180
- Sugar: 12g
- Sodium: 200mg
- Fat: 8g
- Saturated Fat: 3g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 25mg
Keywords: peanut butter cup stuffed cookies, chocolate cookies, Reese’s cookies, easy dessert recipe