As I fumbled with the bag of marshmallows, it hit me—why not combine my two great loves: cookies and everything peanut butter? That joyous spark led to the creation of these Reese’s Marshmallow Peanut Butter Chip Cookies, a sweet delight that guarantees happiness in every bite. With minimal effort, you can whip these up in just 12 minutes, making them perfect for last-minute gatherings or a cozy night in. Plus, they’re gluten-free when made with the right ingredients, so everyone can indulge without a second thought. Imagine biting into a warm, gooey cookie filled with rich chocolate chunks and soft marshmallows—it’s truly the comfort food we’ve all been dreaming of. Ready to satisfy those cravings? Let’s dive into this sweet adventure together!

Why are these cookies a must-try?
Simplicity: With just 12 minutes from start to finish, these cookies are incredibly easy to make, perfect for both beginners and seasoned bakers.
Decadent Flavor: A heavenly mix of rich peanut butter, gooey marshmallows, and melted chocolate creates an unbeatable taste sensation.
Crowd-Pleaser: These treats are guaranteed to impress family and friends, making them ideal for gatherings or cozy nights in.
Versatile Options: Feel free to experiment! Swap in almond butter or dark chocolate chips for a delightful twist.
Gluten-Free Goodness: Using the right ingredients makes these cookies gluten-free, so everyone can enjoy them without worry.
Pair these cookies with a glass of milk or a scoop of homemade ice cream for an unforgettable treat, just like my favorite Soft Maple Cookies with Brown Butter Icing!
Reese’s Marshmallow Peanut Butter Chip Cookies Ingredients
• Get ready for a sweet adventure with these irresistible cookies!
For the Cookie Dough
- Butter – Adds richness and moisture; be sure it’s softened for easy mixing.
- Peanut Butter – Provides that signature nutty flavor; creamy is best for texture.
- Brown Sugar – Sweetens and adds a delightful chewiness; always pack it tightly when measuring.
- Milk – Contributes to moisture and helps blend; use regular or a dairy-free alternative.
- Vanilla Extract – Enhances the overall flavor; go for pure vanilla for the richest taste.
- Egg – Binds everything together; use a large, room-temperature egg for perfect incorporation.
- Flour – The foundation of your cookies; all-purpose flour gives the best results.
- Baking Soda – Leavens the dough; check for freshness to ensure proper rising.
For the Mix-Ins
- Chocolate Chips – Adds a sweet, chocolatey punch; semi-sweet or dark will do nicely.
- Reese’s Peanut Butter Cups – Chopped for chunks of rich chocolate and peanut butter goodness; regular size is ideal.
- Mini Marshmallows – Create that gooey texture; ensure they’re gluten-free if needed.
With this perfect blend of ingredients, you’re on your way to baking delicious Reese’s Marshmallow Peanut Butter Chip Cookies that’ll have everyone coming back for more!
Step‑by‑Step Instructions for Reese’s Marshmallow Peanut Butter Chip Cookies
Step 1: Preheat Your Oven
Begin by preheating your oven to 375°F (190°C). This temperature ensures that your cookies bake evenly and develop a lovely golden-brown color. It’s essential to allow your oven to reach the desired heat before placing your cookie dough onto the baking sheet.
Step 2: Prepare the Baking Sheet
While the oven is heating, prepare your baking sheet by lining it with parchment paper or a silpat. This will prevent the Reese’s Marshmallow Peanut Butter Chip Cookies from sticking and make cleanup a breeze afterward. Ensure the lining covers the entire surface for maximum effectiveness.
Step 3: Mix Butter and Peanut Butter
In a stand mixer, combine the softened butter and peanut butter. Beat them together on medium speed for about 1 minute until the mixture is smooth and well-blended. This step is crucial as it creates the foundational texture of your cookies, ensuring they’re rich and creamy.
Step 4: Add Brown Sugar
Gradually add the brown sugar to the butter and peanut butter mixture. Beat for an additional 2 minutes until the mixture is light and fluffy. You’ll know it’s ready when the sugar is fully incorporated and the mixture has a soft, airy texture, indicating that air has been whipped in for the perfect cookie lift.
Step 5: Incorporate Wet Ingredients
Next, mix in the milk, vanilla extract, and egg to the mixture. Beat on low speed until everything is well combined, which should take about 30 seconds. This step is important for creating a cohesive dough that holds together, ensuring your Reese’s Marshmallow Peanut Butter Chip Cookies remain moist and flavorful.
Step 6: Combine Dry Ingredients
In a separate bowl, whisk together the flour and baking soda until well combined. Slowly incorporate this dry mixture into the wet ingredients in the stand mixer, mixing until just combined. Be careful not to over-mix, as this can lead to tough cookies; you want a smooth dough with no visible flour.
Step 7: Fold in Mix-Ins
Gently fold in the chocolate chips, chopped Reese’s Peanut Butter Cups, and mini marshmallows using a spatula. This ensures even distribution of the delicious mix-ins throughout the dough, creating little pockets of chocolate and gooey marshmallows in your cookies that are sure to delight.
Step 8: Scoop the Dough
Using a medium cookie scoop or two tablespoons, scoop dough onto the prepared baking sheet, spacing them about 2 inches apart. This gives your Reese’s Marshmallow Peanut Butter Chip Cookies enough room to spread while baking, preventing them from merging into each other.
Step 9: Bake the Cookies
Place the baking sheet in the preheated oven and bake for approximately 7 minutes. Keep an eye on them; they should look slightly underbaked and soft in the center, with just a hint of golden color around the edges. This will ensure your cookies are chewy and moist, leaving you wanting more.
Step 10: Cool and Transfer
After baking, remove the cookies from the oven and let them cool on the baking sheet for 5 minutes. This allows them to set and firm up slightly. Then, gently transfer the cookies to a cooling rack to cool completely. Enjoy the aroma of sweetness as they cool, and get ready to savor your delicious Reese’s Marshmallow Peanut Butter Chip Cookies!

Expert Tips for Reese’s Marshmallow Peanut Butter Chip Cookies
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Parchment Paper: Always use parchment paper or a silpat to prevent sticking, ensuring easy cookie removal and less cleanup.
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Cream Butter Well: Beat the butter and sugar until light and fluffy—this incorporates air, making your cookies rise beautifully.
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Watch Baking Time: Adjust the baking time based on your oven; cookies should look slightly underbaked for that perfect chewy texture.
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Ingredient Substitutions: If making variations, ensure substitutes like nut butters are of similar texture; this keeps your cookies flavorful and consistent.
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Cooling Time: Let cookies cool slightly on the baking sheet before transferring them to a rack; this helps maintain the chewy interior without crumbling.
Make Ahead Options
These Reese’s Marshmallow Peanut Butter Chip Cookies are perfect for busy home cooks looking to save time! You can prepare the cookie dough up to 24 hours in advance. Simply mix the ingredients as directed, then cover the bowl tightly and refrigerate. This keeps the dough fresh and maintains the cookies’ delightful texture when baked. If you prefer, you can also scoop the dough into balls and freeze them for up to 3 months—just bake them directly from the freezer, adding an extra minute or two to the baking time. When ready to enjoy these gooey delights, bake and cool as instructed, and savor the deliciousness with minimal effort!
What to Serve with Reese’s Marshmallow Peanut Butter Chip Cookies
Imagine a cozy evening surrounded by loved ones, where the air is filled with the sweet aroma of freshly baked cookies and laughter—the perfect setting for a delightful meal.
- Cold Glass of Milk: Complements the cookies beautifully, balancing sweetness with a refreshing chill that makes each bite even more satisfying.
- Vanilla Ice Cream: The creamy texture pairs perfectly, turning your cookies into a decadent sundae that everyone will adore.
- Fruit Salad: Fresh fruit adds a vibrant touch, providing a refreshing contrast to the rich, gooey cookies—think strawberries or citrus for a zing!
- Chocolate Milkshake: For a chocolate lover’s dream, serve a shake to echo the chocolatey elements in the cookies and create a fun dessert experience.
- Peanut Butter Banana Smoothie: The blend of peanut butter and banana complements the cookie’s flavors while refreshing your palate.
- Coffee or Espresso: The slight bitterness of coffee enhances the sweetness of the cookies, making them an ideal match for a warm cup in the evening.
- Caramel Sauce Drizzle: Elevate the cookies by drizzling warm caramel over them before serving, adding a luxurious sweet note that’s simply irresistible.
- Brownies: For a sweet-tooth extravaganza, serve these alongside fudgy brownies for a rich dessert table that friends and family will love.
How to Store and Freeze Reese’s Marshmallow Peanut Butter Chip Cookies
Airtight Container: Store cookies in an airtight container at room temperature for up to 1 week. This keeps them soft and chewy, ready for you to enjoy!
Freezer: For longer storage, freeze the cookies by placing them in a single layer on a baking sheet until solid. Once frozen, transfer to a zip-top bag or airtight container for up to 3 months.
Reheating: To enjoy warm cookies, simply reheat in the microwave for 10-15 seconds after thawing. This will soften the marshmallows and revive that fresh-baked goodness.
Labeling: If freezing, label your container with the date to easily track how long the cookies have been stored.
Reese’s Marshmallow Peanut Butter Chip Cookies Variations
Explore the delightful ways to customize your Reese’s Marshmallow Peanut Butter Chip Cookies, transforming a classic into something uniquely yours!
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Nut Butter Swap: Use almond or cashew butter instead of peanut butter for a different nutty flavor. The texture remains creamy, offering a fresh twist that’s equally delicious.
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Chocolate Upgrade: Choose dark chocolate chips instead of semi-sweet for a more intense chocolate experience. The richer flavor adds a luxurious depth that’s simply irresistible.
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Crunchy Texture: Fold in chopped nuts like walnuts or pecans for an added crunch. This not only enhances the texture but also adds a satisfying nuttiness that complements the sweetness.
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Marshmallow Fun: Mix in flavored marshmallows, such as strawberry or coconut, for a fun twist. These variations infuse the cookies with an exciting burst of flavor that will delight your taste buds.
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Low-Sugar Option: Replace brown sugar with coconut sugar for a lower glycemic option. This minimizes the sweetness while keeping that lovely caramel flavor intact.
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Oatmeal Addition: Stir in oats to the dough for a chewy texture and added fiber. It transforms your cookies into a sturdier treat while still holding on to that delicious melt-in-your-mouth quality.
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Spiced Delight: Add a pinch of cinnamon or nutmeg to the dough for a hint of warmth. This gives your cookies a cozy flavor profile, perfect for chilly evenings.
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Heat it Up: For a kick, mix in a dash of cayenne pepper or chili powder. This unexpected heat plays beautifully against the sweet, creamy elements, creating a complex flavor experience.
With these tempting variations in mind, get creative and tailor this cookie recipe to suit your tastes! Whether you enjoy them alongside a warm glass of milk or with a scoop of homemade ice cream, these cookies are sure to be a hit. If you’re interested in other homemade delights, don’t forget to check out my Cowboy Butter Chicken or those comforting Garlic Butter Chicken Bites!

Reese’s Marshmallow Peanut Butter Chip Cookies Recipe FAQs
How do I select ripe ingredients for this recipe?
Absolutely! When choosing your ingredients, make sure to pick the ripest and freshest options. For the peanut butter, go for a creamy variety without added sugars or oils for the best texture. Your butter should be softened but not melted—aim for that perfect spreadability. When looking for chocolate chips or Reese’s Peanut Butter Cups, ensure there are no visible signs of damage (like cracks or discoloration); fresh chocolate will melt smoothly and taste divine!
How should I store Reese’s Marshmallow Peanut Butter Chip Cookies?
Very! Store your cookies in an airtight container at room temperature for up to 1 week. This way, they maintain their delightful chewiness and flavor. If you want to keep them longer, consider freezing them following the steps below.
Can I freeze these cookies? If so, how?
Certainly! To freeze your Reese’s Marshmallow Peanut Butter Chip Cookies, first cool them completely. Then, place the cookies in a single layer on a baking sheet and freeze until solid, which usually takes about 1-2 hours. Once firm, transfer the cookies to a zip-top bag or airtight container, separating layers with parchment paper to prevent sticking. They can be frozen for up to 3 months! When you’re ready to enjoy, just thaw and pop them in the microwave for 10-15 seconds to warm them back up.
What should I do if my cookies come out too flat or too thick?
No problem! If your cookies are coming out too flat, ensure your butter is at room temperature—not melted—when mixing. This crucial first step allows them to hold their shape better. If they’re too thick, it may be due to over-measuring your flour. For the next batch, try spooning flour into your measuring cup and leveling it off with a knife rather than scooping directly from the bag, which can compact it.
Can I adapt this recipe for dietary restrictions?
Absolutely! These cookies can easily be made gluten-free by using gluten-free flour and checking that your chocolate chips and marshmallows are certified gluten-free. If you’re concerned about allergies, feel free to substitute nut butters with sunflower seed butter or similar alternatives. Just keep in mind that textures may vary a bit, but the cookies will still be scrumptious!
How long can these cookies stay fresh?
Oh, they can stay delicious for up to 1 week at room temperature in an airtight container! But if you freeze them, just remember they’ll keep well for approximately 3 months. It’s so convenient to have a stash of these sweet treats ready to go!

Reese's Marshmallow Peanut Butter Chip Cookies You'll Crave
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C).
- Prepare your baking sheet by lining it with parchment paper.
- In a stand mixer, combine the softened butter and peanut butter. Beat them together until smooth.
- Gradually add brown sugar, beating until light and fluffy.
- Mix in the milk, vanilla extract, and egg until well combined.
- Whisk together flour and baking soda. Slowly incorporate into wet ingredients.
- Fold in chocolate chips, chopped Reese’s, and mini marshmallows using a spatula.
- Scoop dough onto prepared baking sheet, spacing them about 2 inches apart.
- Bake for approximately 7 minutes until slightly underbaked and soft in the center.
- Let cookies cool on the baking sheet for 5 minutes, then transfer to a cooling rack.

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