Name: Oatmeal Creme Pie Sandwich Cookies Recipe
Prep time: 30 min
Cook time: 10 min
Total time: 1 h 10 min
Cuisine: American
Ingredients: 1½ cups (180 g) all purpose flour; 1 cup (80 g) quick cooking oats; 1 teaspoon ground cinnamon; ¾ teaspoon baking soda; ¼ teaspoon salt; ½ cup (113 g) unsalted butter; ¾ cup (150 g) light brown sugar; ¼ cup (50 g) sugar; 1 tablespoon (15 ml) unsulphured molasses; 1 teaspoon vanilla extract; 1 large egg, room temperature; ¾ cup (170 g) unsalted butter, cubed; 1 cup (5 oz.) marshmallow creme or fluff; 2½ cups (300 g) powdered sugar; 1 teaspoon vanilla extract; ¼ teaspoon salt

Jump to Recipe·4 from 4 reviews

If you have a soft spot for cozy, nostalgic treats that bring warm smiles, this Oatmeal Creme Pie Sandwich Cookies Recipe is your new best friend in the kitchen. Picture chewy, cinnamon-kissed oatmeal cookies hugging a fluffy, luscious marshmallow cream filling that melts in your mouth with every bite. These sandwich cookies are surprisingly simple to make and absolutely perfect for sharing, gifting, or savoring alongside a cup of tea or milk. The harmony of wholesome oats and sweet, creamy filling is irresistible, making this dessert a comforting hug in cookie form.

Ingredients You’ll Need

The image shows six white bowls arranged on a white marbled surface. The largest bowl at the top contains dry ingredients with light beige oats covering most of the bowl, a white powdery ingredient on the left side, and a small pile of orange-brown spice near the top left edge. Below and to the left, a small bowl holds three pieces of pale yellow butter in liquid form. To the right of the butter, a medium bowl is filled half with light brown sugar and half with white sugar. Below the oats bowl and to the left, a small bowl has a single brown egg. Next to the egg, two small round bowls contain dark liquid, likely vanilla extract on the left and a thick black syrup on the right. The surface and bowls are clean with a bright, natural light setting. Photo taken with an iphone --ar 4:5 --v 7

Every ingredient in this Oatmeal Creme Pie Sandwich Cookies Recipe plays a crucial role in crafting the perfect balance of texture, flavor, and that charming golden color. From the lightly spiced oats to the silky-smooth marshmallow filling, each element comes together beautifully with simple pantry staples.

All purpose flour: The foundation that gives structure to these cookies, ensuring they hold their soft chew.
Quick cooking oats: Adds heartiness and that classic oatmeal cookie texture everyone loves.
Ground cinnamon: Brings a warm, cozy spice that elevates the flavor subtly but irresistibly.
Baking soda: Helps the cookies rise slightly for a tender crumb.
Salt: Balances sweetness and boosts the overall flavor profile.
Unsalted butter: Provides richness and moisture, essential for that soft chew and creamy filling.
Light brown sugar: Infuses a slight molasses sweetness that complements the oats and cinnamon.
Granulated sugar: Adds just the right amount of sweetness and helps with texture.
Unsulphured molasses: Gives depth and that authentic oatmeal cookie flavor.
Vanilla extract: Enhances every flavor note with its sweet aromatic essence.
Egg: Binds everything together while contributing to the cookies’ tenderness.
Marshmallow creme or fluff: The star for the creamy, sweet sandwich filling that’s light as air.
Powdered sugar: Sweetens and thickens the filling to the perfect consistency.

How to Make Oatmeal Creme Pie Sandwich Cookies Recipe

Step 1: Mix the Dry Ingredients

Start by whisking together the all purpose flour, quick cooking oats, baking soda, ground cinnamon, and salt. This blend guarantees that your cookies will have a beautifully even flavor and texture. Setting the dry mix aside now allows you to focus on creaming the wet ingredients next—an essential step to getting that tender yet chewy bite.

Step 2: Cream Butter and Sugars

Heat your cold butter gently just until softened, then beat it with both brown and granulated sugars until creamy and smooth. This combination is what will give your cookies that perfect balance between chewy and sweet, plus a hint of caramel from the brown sugar’s molasses content. Make sure not to melt the butter completely; you want it soft but still slightly solid to trap those air pockets.

Step 3: Incorporate Wet Ingredients

Mix in the egg, molasses, and vanilla extract slowly, blending everything to silky smoothness. Gradually add in the dry ingredients with your mixer on low speed to avoid overworking the dough. This careful handling keeps the cookies tender while still structured enough to hold their shape after baking.

Step 4: Chill the Dough

Shape the dough into balls and pop them into the fridge for about 30 minutes while you preheat the oven. Chilling firms up the dough, controls spread during baking, and enhances flavor melding. It’s like letting your cookies take a little power nap before the big performance!

Step 5: Bake the Cookies

Arrange chilled cookie dough balls spaced well apart on parchment-lined baking sheets. Bake at 350°F for 10 to 12 minutes until the edges are lightly golden but the centers remain soft and puffed. This specific timing ensures the cookies are irresistibly tender and chewy after cooling.

Step 6: Shape and Cool

Once out of the oven, use a round biscuit or cookie cutter slightly bigger than each cookie to gently press the edges inward, restoring a perfect circle if needed. Let them cool on the baking tray for 10 minutes before transferring to a cooling rack—this helps maintain their soft texture.

Step 7: Prepare the Marshmallow Filling

With your stand mixer, beat together cubed butter and marshmallow creme until fluffy and smooth. Slowly add powdered sugar, vanilla, and salt while mixing on low until combined, then crank the speed to high for a final beat until light as a cloud. If your filling feels too firm, add a splash of milk or cream to get that perfect pipeable texture.

Step 8: Assemble the Sandwich Cookies

Spread or pipe a generous dollop of marshmallow filling onto half of the cooled cookies, leaving a small border so the filling doesn’t spill. Gently press the remaining cookies on top to create a sandwich, letting the filling spread evenly to the edges. Your Oatmeal Creme Pie Sandwich Cookies Recipe is now ready to delight!

How to Serve Oatmeal Creme Pie Sandwich Cookies Recipe

The image shows several oatmeal cream sandwich cookies stacked on a white marbled surface. Each sandwich has two textured brown oatmeal cookie layers with a thick, smooth, white cream filling in the middle. One sandwich in front has a bite taken out, revealing the soft, creamy layer between the two rough-textured cookie layers. The cookies are crumbly and slightly uneven, with a golden brown color. photo taken with an iphone --ar 4:5 --v 7

Garnishes

For an extra special touch, sprinkle a tiny pinch of cinnamon or dust a light layer of powdered sugar on top before serving. You can also drizzle a little melted chocolate across the top cookie for a fun twist. These garnishes add extra charm and a hint of indulgence without overpowering the classic flavors.

Side Dishes

These oatmeal creme pie sandwich cookies pair beautifully with a wide selection of drinks. Think hot chocolate for a cozy treat, freshly brewed coffee for a perfect afternoon pick-me-up, or a chilled glass of milk for the ultimate nostalgic combo. They also make a delightful accompaniment to simple fruit salads or even a scoop of vanilla ice cream.

Creative Ways to Present

Turn your sandwich cookies into a party star by arranging them on tiered dessert platters or wrapping each in wax paper tied with rustic twine for gifting. You could also serve them as mini stacks, layering the sandwiches with fresh berries or edible flowers to elevate their presentation. Personalized notes tucked next to each can make the experience even more heartwarming!

Make Ahead and Storage

Storing Leftovers

Keep your oatmeal creme pie sandwich cookies fresh by storing them in an airtight container at room temperature. They maintain their soft chew and fluffy filling for up to 3 days. Storing them properly is key to preserving that soft, luscious texture you worked so lovingly to create.

Freezing

If you want to keep these delights longer, freeze the fully assembled sandwich cookies in a single layer on a baking sheet, then transfer them to a zip-top freezer bag or airtight container. They freeze wonderfully for up to 3 months. When ready to indulge, thaw them overnight in the fridge to retain that fresh-baked softness.

Reheating

For that just-baked warm feel, briefly microwave cookies on a low power setting for 10 to 15 seconds or until the filling is slightly gooey. Avoid overheating to keep the cookies from becoming too soft or the filling too runny. This little trick revives the comforting experience of fresh out-of-the-oven treats anytime!

FAQs

Can I substitute old fashioned oats for quick cooking oats in this recipe?

Yes, you can substitute old fashioned oats, but expect a chewier texture and more pronounced oat flavor. Quick oats tend to blend into the cookie dough more smoothly, which is why they are preferred here, but old fashioned oats certainly give a wonderful rustic bite.

Is it possible to make this recipe vegan?

With a few adjustments, yes! Replace butter with vegan butter and use a vegan marshmallow creme alternative. Also, swap the egg with a flax or chia egg. The texture may vary slightly but it’s definitely achievable with these substitutions.

Why does the dough need to be chilled before baking?

Chilling the dough solidifies the fats, preventing the cookies from spreading too much in the oven, so they bake with a nice shape and chewy texture. It also helps the flavors meld together, making for tastier cookies overall.

What’s the best way to get the marshmallow creme filling to be fluffy?

Beating the butter and marshmallow creme together first until smooth is essential. Then, add powdered sugar gradually and whip everything on high speed at the end to incorporate air. This high-speed whipping gives you that light, fluffy filling that makes these cookies so special.

Can I make the cookies without the marshmallow creme? What’s a good alternative filling?

Absolutely! You can fill these oatmeal cookies with a simple cream cheese frosting, peanut butter filling, or even dulce de leche for a richer option. Each alternative complements the chewy cookie texture in its own delightful way.

Final Thoughts

I cannot recommend enough trying this Oatmeal Creme Pie Sandwich Cookies Recipe because it’s the perfect blend of nostalgia, flavor, and fun to make at home. Whether you’re baking for family gatherings, holidays, or a sweet treat to brighten your day, these cookies deliver cozy comfort and smiles with every bite. Once you make them, they’ll quickly become one of your go-to desserts and a beloved classic in your recipe collection!