At the oven door, the tops are the cue I watch: they should look dry, while the edges have just set. That’s how I keep pumpkin oatmeal cream pies soft instead of baking them until they turn firm all the way through. The cookies come out warmly spiced, with enough oats to give each bite a little chew, and the marshmallow filling turns them into proper sandwich cookies.
The dough gets a short rest in the refrigerator before it goes into the oven. That gives the oats time to take up some of the moisture from the pumpkin, so the scoops are easier to handle and the cookies bake more evenly. I also bake one sheet at a time; it’s a small detail that keeps the timing and browning predictable. Once the cookies are cool, a generous layer of fluffy filling makes each pair a soft, cinnamon-scented treat.
Kitchen Note
Before I spread on the filling, I pair up cookies that are close in size. The sandwiches sit level, and the filling stays tucked between the cookies instead of squeezing out at one side.
Save these Pumpkin Oatmeal Cream Pies for a bake when you want soft spiced cookies and a fluffy marshmallow center.
Why Pumpkin Pie Filling Throws Off These Oatmeal Cream Pies
Pumpkin puree and pumpkin pie filling may sit beside each other on the grocery shelf, but they don’t behave the same way in cookie dough. Pie filling already contains sweetener and spices, so using it here changes the balance of the brown sugar, granulated sugar, cinnamon, and ginger. Its sweetness and seasoning are built for a pie, not for a cookie that also has a sweet marshmallow filling.
Plain pumpkin puree gives the dough pumpkin flavor without adding another layer of sugar or a pre-set spice blend. That matters because the cookies need enough structure to hold a scoop of filling without tasting heavy or overly sweet. Check the can before you add it: the label should say pumpkin puree, not pumpkin pie filling. The distinction is easy to miss when you’re moving quickly, and it’s one of the few choices that can shift the whole batch before the dough even reaches the oven.
The Oats and Marshmallow Creme Give These Sandwiches Their Texture
- Old-fashioned rolled oats — They keep their shape in the dough and give the cookies their distinct, gently chewy bite. Quick oats can work in a pinch, but they absorb moisture differently and make a softer, less textured cookie. There’s no need to seek out a specialty brand; choose plain rolled oats.
- All-purpose flour — This provides the structure that lets the cookies hold together around the filling. A cup-for-cup gluten-free baking blend is the most practical swap; look for one intended to replace wheat flour in baking, since a single-ingredient starch won’t give the same support.
- Butter — The butter is divided between the cookie dough and the filling, and its softened texture matters in both bowls. Unsalted butter keeps the salt level predictable. Oil isn’t a direct substitute here: the dough relies on creamed butter, and the filling needs butter to become fluffy.
- Light brown and granulated sugars — Brown sugar brings moisture and a mellow molasses note, while granulated sugar balances the dough. Dark brown sugar can replace light brown sugar for a deeper molasses flavor, but liquid sweeteners aren’t a good swap because they add moisture and change the dough.
- Marshmallow creme — It gives the filling its light, pillowy character alongside the powdered sugar and butter. Regular marshmallows aren’t a one-for-one replacement; they don’t blend into the same smooth filling. Use a fresh jar of marshmallow creme for the easiest mixing.
- Cinnamon and ginger — These ground spices give the cookies their warm, familiar pumpkin-seasoning taste without relying on premixed pie spice. If your jars have been open for years, replace them; fresh ground spices come through more clearly in a soft cookie.
Chill, Bake Until Matte, and Build the Cream-Pie Centers
Whisk the dry ingredients and cream the butter
Whisk the flour, oats, baking soda, cinnamon, ginger, and salt together in a medium bowl so the leavener and spices are distributed through the oats. In a large bowl, beat half of the softened butter with both sugars using an electric mixer until the mixture looks light and fluffy, about 2 minutes. Beat in the egg yolk, pumpkin puree, and vanilla until combined. Stir in the flour mixture just until no dry streaks remain; mixing beyond that point can make the cookies tougher than you want.
Give the dough its refrigerator rest
Cover the bowl and refrigerate the dough for 30 minutes. This short rest firms it enough to scoop into even portions instead of letting it slump as you work. While the dough chills, heat the oven to 350°F and line two large baking sheets with parchment paper. Keep the dough covered during the rest so the surface doesn’t dry out.
Space the scoops and bake one sheet at a time
Scoop the dough into 24 portions, about 1 1/2 tablespoons each, and leave 2 inches between them on the prepared sheets. Bake one sheet at a time for 11–13 minutes. Look for edges that have set and tops that appear dry; the cookies shouldn’t still look wet across the surface. Pull them when those cues show rather than waiting for deep browning, which can leave the finished cookies firm.
Cool completely before filling
Let the cookies rest on their baking sheets for 5 minutes, then move them to a wire rack to cool completely. Beat the remaining softened butter in a large bowl until smooth, then beat in the powdered sugar and marshmallow creme until fluffy. Spread about 1 heaping tablespoon of filling over the flat side of half the cookies. Set the remaining cookies on top, flat side down, and press gently so the filling reaches the edges without forcing the cookies apart.
Three Ways to Change the Sandwich Without Losing Its Soft Bite
Make a gluten-free batch
Replace the all-purpose flour with a cup-for-cup gluten-free baking blend and use certified gluten-free old-fashioned oats. The cookies may have a slightly more delicate crumb, so handle them gently when moving them from the baking sheet to the rack.
Lean into the ginger
For a sharper, more ginger-forward cookie, increase the ground ginger and reduce the cinnamon rather than adding a new spice blend. The pumpkin flavor still comes through, but the finish is warmer and a little less cinnamon-sweet.
Serve them open-faced
Spread the filling over the flat side of each cooled cookie and leave off the top cookie. You’ll get the same spiced cookie and marshmallow center in a more casual, less stacked format, with no need to match cookies by size.
Storage and Reheating
- Refrigerator: Keep assembled pies in an airtight container for up to 4 days. The cookies soften as they sit against the filling.
- Freezer: Freeze the cooled, unfilled cookies in an airtight container, with parchment between layers, for up to 2 months. Thaw at room temperature, then make the filling and assemble.
- Reheating: These are best unheated; warming assembled pies can melt the filling. Let refrigerated pies sit at room temperature for 10–15 minutes before serving.
Questions That Come Up While Making Pumpkin Oatmeal Cream Pies
Pumpkin Oatmeal Cream Pies
Ingredients
Equipment
Method
- In a medium bowl, whisk together the all-purpose flour, old-fashioned rolled oats, baking soda, ground cinnamon, ground ginger, and salt.
- In a large bowl, beat 1/2 cup of the divided softened unsalted butter with the packed light brown sugar and granulated sugar using an electric mixer until light and fluffy, about 2 minutes.
- Beat in the large egg yolk, pumpkin puree (not pumpkin pie filling), and vanilla extract until combined.
- Stir the flour mixture into the pumpkin mixture just until no dry streaks remain.
- Cover and refrigerate the dough for 30 minutes.
- Heat the oven to 350°F.
- Line two large baking sheets with parchment paper.
- Scoop the dough into 24 portions, about 1 1/2 tablespoons each, and arrange them 2 inches apart on the baking sheets.
- Bake one sheet at a time for 11–13 minutes, until the edges are set and the tops look dry.
- Cool the cookies on the baking sheets for 5 minutes.
- Transfer the cookies to a wire rack to cool completely.
- Beat the remaining 1/2 cup softened unsalted butter in a large bowl until smooth.
- Beat in the powdered sugar and marshmallow creme until fluffy.
- Spread about 1 heaping tablespoon of filling on the flat side of half the cooled cookies.
- Top with the remaining cookies, flat side down.
