Prepare for a delightful journey into the world of homemade treats with these incredible Oatmeal Cream Pie Cookies! Imagine soft, chewy, and utterly irresistible flourless oatmeal cookies, bursting with the rich flavor of peanut butter, crunchy walnuts, and melty chocolate chips. Sandwiched between these flavorful cookies is a luscious, fluffy marshmallow cream filling that will transport you straight back to childhood. This recipe takes a classic nostalgic treat and elevates it with exciting new dimensions of flavor and texture, making it a truly unforgettable dessert experience. Get ready to bake a batch of pure joy!
The Ultimate Peanut Butter Oatmeal Cream Pie Cookies
The inspiration for these extraordinary Oatmeal Cream Pie Cookies began with a favorite event: the monthly Peanut Butter Bash! For those who share my passion for all things peanut butter, you know the excitement that comes with getting creative with this versatile ingredient. This particular month, the challenge was to pair peanut butter with cinnamon – a combination that immediately sparked ideas for something warm, comforting, and utterly delicious. While my initial thought gravitated towards classic peanut butter oatmeal cookies, a long-held desire to craft homemade oatmeal cream pies quickly took over. My husband, in particular, is a lifelong fan of oatmeal cookies, and I had been promising him a batch for ages. However, I often find traditional oatmeal cookies a bit plain for my taste, always seeking a way to “jazz them up” and add an extra layer of excitement. That’s when the brilliant idea struck: combining all these elements into Peanut Butter Oatmeal Cream Pie Cookies!
This recipe isn’t just about fulfilling a craving; it’s about transforming a beloved classic into something truly special. By integrating the rich, nutty notes of peanut butter and the warming spice of cinnamon into a flourless oatmeal cookie base, we create a depth of flavor that’s simply unparalleled. The chewy texture of the oats, combined with carefully chosen mix-ins and that iconic marshmallow cream filling, results in a cookie sandwich that is both familiar and excitingly new. It’s the perfect blend of comforting nostalgia and innovative flavor, guaranteed to become a new favorite in your recipe collection.

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Crafting Your Perfect Oatmeal Cream Pie Cookies
My husband’s preference would lean towards a classic oatmeal raisin cookie, but I often opt for chocolate chips as a delicious compromise – and a decision I never regret! For these cookies, I chose to incorporate both dark chocolate chips and chopped walnuts, which are entirely optional but highly recommended. You can certainly make a more traditional oatmeal cream pie by omitting these mix-ins, but the added texture and flavor they bring truly elevate these peanut butter oatmeal cookies. The delightful crunch of the walnuts beautifully contrasts with the soft chewiness of the cookie and the silky smoothness of the marshmallow cream filling. And speaking of that filling, it’s so irresistibly good, I could honestly eat it by the spoonful! I confess, I indulged in far more of these than I probably should have, but when something tastes this incredible, guilt simply isn’t an option.

Just gaze upon that magnificent, generous layer of fluffy cream filling – it’s pure heaven!

The combination of dark chocolate chips and the earthy crunch of walnuts truly enhanced the flavor profile of these cookies. The slight bitterness of the dark chocolate beautifully balances the sweetness of the cookie and the filling, while the walnuts add a welcome textural contrast. If you’re looking to experiment, consider using toasted pecans and creamy white chocolate chips for a different but equally delightful twist. The possibilities for customizing your perfect oatmeal cream pie are endless! These cookies are a celebration of flavor and texture, designed to satisfy even the most discerning sweet tooth.

The “Healthy” Breakfast Debate (According to Kids)
It’s always amusing when my kids present their “logic” regarding sweet treats. They once tried to convince me that these Oatmeal Cream Pie Cookies could be considered a healthy breakfast option since they’re made with oatmeal and are flourless. Where do they get such clever arguments? Oh, right – that was probably me, planting those seeds of delightful deception years ago! While we all know these are firmly in the dessert category, the abundance of wholesome oats does lend a certain satisfying chewiness, and the absence of traditional wheat flour gives them a unique texture. This means less gluten from wheat (though not strictly gluten-free unless certified gluten-free oats are used) and a different kind of richness. But, let’s be honest, the true health benefit here is the sheer joy and comfort they bring with every bite!

Homemade Oatmeal Cream Pies: Recipe Details
Creating these delightful Oatmeal Cream Pie Cookies is a straightforward process that yields incredibly rewarding results. The recipe is divided into three simple stages: preparing the flavorful peanut butter oatmeal cookies, whipping up the fluffy marshmallow cream filling, and finally, assembling these irresistible cookie sandwiches. Each step is designed for ease, ensuring that even novice bakers can achieve perfectly soft, chewy cookies with a dreamily smooth filling. The magic truly happens when these two components come together, creating a symphony of textures and tastes.

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Oatmeal Cream Pie Cookies
Ingredients
Cookies
- 2 large eggs
- 2 1/4 cups quick oats
- 1/4 cup peanut butter
- 1/2 cup granulated sugar
- 1/2 cup packed brown sugar
- 1/4 cup butter room temperature
- 1/3 cup dark chocolate chips
- 1/4 cup chopped walnuts
- 1 tsp baking soda
- 1/2 tsp vanilla extract
- 1/2 tsp cinnamon
- 1/4 tsp nutmeg
Filling
- 1 tbsp hot water
- 1/4 tsp salt
- 1 – 7- ounce jar marshmallow creme
- 1/2 cup shortening
- 2/3 cup confectioners sugar
- 1 tsp vanilla
Instructions
Cookies
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Preheat oven to 350°F.
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Line a large baking sheet with parchment paper.
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Beat together sugar, butter, & peanut butter.
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Add baking soda, eggs, vanilla extract, cinnamon, & nutmeg.
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Slowly add oats to the mixture. Once mixed, stir in chocolate chips & walnuts.
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Place spoonfuls of batter on baking sheet
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Bake for 10-15 minutes, or until cookies begin to brown on the sides.
Filling
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Dissolve the salt in hot water – set aside
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Combine marshmallow creme, shortening, confectioners sugar & vanilla in a mixer bowl & beat well, until fluffy.
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Add the salt water & mix well.
Assemble
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Spread filling on one side of a cookie and top with another cookie.
Nutritional information for the recipe is provided as a courtesy and is approximate. Please double-check with your own dietary calculator for the best accuracy. We at Yummi Haus cannot guarantee the accuracy of the nutritional information given for any recipe on this site.
With just 20 minutes of prep and 30 minutes of baking, you’ll have 50 mini-masterpieces ready to impress. This recipe is perfect for parties, potlucks, or simply satisfying that sudden craving for something sweet and comforting. The yield of 50 cookies (25 sandwiches) makes it ideal for sharing, though you might find yourself wanting to keep them all to yourself!

Truly, these cookies were worth every single delicious bite – a perfect blend of flavors and textures that dance on your palate.
We genuinely hope you enjoy making and savoring these unique Oatmeal Cream Pie Cookies as much as we do. They are designed to bring a smile to your face and a warmth to your kitchen. Once you try this recipe, you might find yourself reaching for these instead of traditional oatmeal cookies, thanks to their incredible flavor and delightful chewiness. Don’t forget to share your creations with us! We love seeing your baking adventures. If you whip up a batch, please tag us on Instagram @KleinworthCo. Your feedback and photos mean the world to us!
Discover More Irresistible Peanut Butter Recipes!
If you’re anything like me, the love for peanut butter knows no bounds. This versatile ingredient adds a unique depth and richness to so many desserts, transforming ordinary treats into something extraordinary. Since you’ve enjoyed these Oatmeal Cream Pie Cookies, you’re likely eager to explore more ways to incorporate peanut butter into your baking. That’s why I’ve gathered some of my favorite peanut butter bash recipes and other delightful creations featuring this beloved nutty spread. From cookies to bars and everything in between, these recipes promise to satisfy every peanut butter craving you might have. Dive in and discover your next favorite treat!
Peanut Butter Snickerdoodle Cookies

Peanut Butter Stuffed Honey Taffy

Peanut Butter and Jelly Bars

Oreo Stuffed Peanut Butter Blondies

Coffee Peanut Butter Bars
But the peanut butter party doesn’t stop there! I encourage you to also explore these fantastic ideas from my fellow bloggers, who are just as passionate about peanut butter as I am. Their creative recipes offer even more ways to enjoy the rich, creamy, and undeniably satisfying flavor of peanut butter in your desserts. These collaborations showcase the incredible versatility of this ingredient and provide endless inspiration for your next baking adventure. Be sure to check them out for more delightful peanut butter-infused treats!
Peanut Butter Stuffed Brownies from Dinners, Dishes, and Desserts
Baked Banana Bread Donuts from Together as Family Blog
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