Easy Oatmeal Cream Pies (Soft, Chewy & Better Than Little Debbie!)

If you loved Little Debbie Oatmeal Cream Pies as a kid, this homemade version will win you over. These Easy Oatmeal Cream Pies pair soft, chewy oatmeal cookies with a fluffy marshmallow cream filling for a richer, more satisfying treat.
Using old-fashioned oats that are briefly pulsed, browned butter, and a hint of molasses, these cookies develop a deeper flavor and a perfect chew that beats the boxed version. The marshmallow creme filling is light, sweet, and creamy—exactly what makes an oatmeal cream pie so nostalgic.
Whether you’re baking for a gathering, packing lunches, or simply craving something sweet, these sandwich cookies are easy to make and sure to please.
Why You’ll Love These Homemade Oatmeal Cream Pies

- Soft, chewy oatmeal cookies
- Fluffy marshmallow cream filling
- Deeper flavor from browned butter and molasses
- Simple ingredients you likely already have
- Perfect make-ahead dessert
- Great for lunchboxes and parties
These homemade oatmeal cream pies capture the classic flavor while improving on texture and richness.
What Makes These Oatmeal Cream Pies Special?

Instead of quick oats, this recipe starts with old-fashioned oats that are pulsed briefly in a food processor so they break into smaller pieces without becoming flour. Combined with browned butter and a touch of molasses, the cookies achieve a rich, caramel-like flavor and a satisfyingly chewy texture. The marshmallow creme filling brings the sweetness and lightness that make these pies irresistible.
Ingredients You’ll Need
For the Cookies
- 3 cups old-fashioned oats
- 1⅔ cups all-purpose flour
- 1½ teaspoons ground cinnamon
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 cup unsalted butter, browned and cooled
- 1¼ cups packed dark brown sugar
- ½ cup granulated sugar
- 2 large eggs
- 2 tablespoons molasses
- 2 teaspoons vanilla extract
For the Filling
- ¾ cup unsalted butter, softened
- 1 (7-ounce) jar marshmallow creme
- 2 cups powdered sugar (confectioners’ sugar)
- 1 teaspoon vanilla extract
- ¼ teaspoon salt
How to Make Easy Oatmeal Cream Pies

Step 1: Prepare the Oats
Add the old-fashioned oats to a food processor and pulse a few times. You want smaller oat pieces, not oat flour—this preserves chew while improving texture.
Step 2: Mix the Dry Ingredients
In a medium bowl, whisk together the pulsed oats, all-purpose flour, cinnamon, baking soda, and salt. Set aside.
Step 3: Mix the Wet Ingredients
In a large bowl or the bowl of a stand mixer fitted with a paddle, beat the browned butter with the dark brown sugar and granulated sugar until smooth and creamy. Add the eggs one at a time, then mix in the molasses and vanilla. The molasses gives these cookies their characteristic flavor.
Step 4: Make the Cookie Dough
Gradually add the dry ingredients to the wet ingredients and mix on low speed until just combined. Avoid overmixing to keep the cookies tender.
Step 5: Scoop and Bake
Use a cookie scoop to portion the dough into 2-tablespoon balls. Place them on baking sheets lined with parchment paper, about 2 inches apart. Bake at 350°F for 10–12 minutes. The edges should be lightly golden while the centers remain soft.
Step 6: Cool Completely
Let the cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely. Fully cooled cookies will hold the filling better and prevent it from melting.
How to Make the Marshmallow Filling
Beat the softened butter in a large bowl until light and fluffy. Add marshmallow creme, powdered sugar, vanilla, and salt. Beat with an electric mixer until smooth and creamy to create the signature sweet filling.
Assemble the Oatmeal Cream Pies
Spread or pipe the filling onto the flat side of one cookie, top with another cookie, and press gently to form a sandwich. Repeat until all cookies are paired. A piping bag makes assembly neater, but a spoon works fine too.
Tips for the Best Homemade Oatmeal Cream Pies

Use Browned Butter
Browned butter adds a nutty, caramel note that deepens the cookie’s flavor.
Don’t Overbake
Remove the cookies while centers are still slightly soft; they firm up as they cool.
Cool Completely
Fully cool the cookies before filling so the marshmallow center holds its shape.
Use Old-Fashioned Oats
Old-fashioned oats give the best chew and texture for these sandwiches.
What to Serve with Oatmeal Cream Pies

These cookies are perfect with cold milk, coffee, hot chocolate, or a scoop of vanilla ice cream. They make great after-school snacks, dessert table additions, or treats whenever a sweet craving hits.
Storage Instructions
Store assembled oatmeal cream pies in an airtight container at room temperature for up to 3 days. For longer storage refrigerate up to 1 week. To freeze, wrap individual pies in plastic wrap and place in an airtight container for up to 2 months.
Frequently Asked Questions
Can I use quick oats?
Yes, but quick oats create a softer texture. Old-fashioned oats deliver the best chew.
Can I make these ahead of time?
Absolutely. They often taste better after a few hours as the filling slightly softens the cookies.
Can I freeze oatmeal cream pies?
Yes. Wrap each pie individually and store in an airtight container in the freezer.
Are these like Little Debbie Oatmeal Cream Pies?
They’re inspired by the classic, but many prefer this homemade version for its browned butter flavor and homemade filling.
Can I add chocolate chips?
Definitely—chocolate chips are a delicious variation that pairs well with the oats and molasses.
Final Thoughts
These Easy Oatmeal Cream Pies deliver the nostalgic flavor you remember with improved texture and depth. Soft, chewy cookies, a hint of molasses, and a light marshmallow filling combine into a dessert that’s comforting and addictive. Make a batch to share or keep on hand for a homemade upgrade to a childhood favorite.