Browned Butter Oatmeal Cream Pies

These browned butter oatmeal cream pies have everything I want in a homemade sandwich cookie: chewy oatmeal cookies, lightly crisp edges, and a sweet marshmallow filling tucked into the middle. Browning the butter adds a rich, nutty flavor that makes this childhood favorite feel a little more special.

This recipe makes 11-12 oatmeal cream pies, with two cookies and a layer of marshmallow frosting in each sandwich. Bake the cookies at 375°F for 9–10 minutes per batch, and the dough doesn’t need to be chilled. Just leave time for the butter mixture to cool before adding the eggs and for the baked cookies to cool completely before filling.

If you are a big fan of chewy oatmeal cookies, you need to also check out my Browned Honey Oatmeal Cookies or my Oatmeal Apple Cinnamon Cookies.

Yield and Timing

• Makes: 11–12 sandwiches, or 22–24 individual cookies
• Oven temperature: 375°F
• Bake time: 9–10 minutes per batch at 375°F
• Chilling: No scheduled dough chilling in this method. But it is best to let the browned butter cool before using it. If it’s piping hot, the cookies will spread too much. Pour the browned butter into a bowl and let it sit 15-30 minutes.
• Cooling: Cool the butter-sugar mixture before adding eggs. Rest baked cookies on the pan for 5–10 minutes, then transfer to a rack and cool completely before filling
• Total time: Allow for browning and cooling the butter, mixing, baking each batch, cooling the cookies, and assembling. The 9–10-minute bake time is only one part of the process. Prep is about 30 minutes, and assembly takes about 15 minutes. So plan on 45-55 minutes to complete the cookies.

How to Make Oatmeal Cream Pies

Ingredients: see the recipe card for the full quantities. These are the ingredients that give the cookies their flavor and texture:

• Unsalted butter: Browning it creates toasted milk solids and a nutty aroma. Keep those golden-brown bits when you transfer the butter to the mixing bowl
• Brown sugar: Adds sweetness and molasses flavor while helping the cookies retain moisture
• Eggs and vanilla: Eggs help bind the dough, while vanilla rounds out the butter and cinnamon flavors
• All-purpose flour and oats: Flour provides structure, and oats give the cookies their hearty, chewy texture
• Baking soda, cinnamon, and salt: Baking soda contributes to spreading and browning, cinnamon adds warmth, and salt balances the sweetness
• Marshmallow creme, powdered sugar, vanilla, and cream: Come together to make the sweet, spreadable filling

Step One: Gather your ingredients and preheat your oven to 375 degrees.

Step Two: First, brown your butter. Place the unsalted butter in a medium-sized saucepan over medium heat. Allow it to melt and then boil, stir continuously, your butter is done once the boiling bubbles stop making cracking and popping noises and you see tiny brown flecks.

Step Three: Pour the hot butter over the brown sugar into the bowl of a standing mixer. Stir and allow the hot butter to start to melt the sugar and cool down. Turn the mixer on high and beat until the butter is no longer hot.

Step Four: Add the eggs and vanilla; stir until combined.

Step Five: Now add the flour, oats, baking soda, cinnamon, and salt. Mix on low until just combined.

Step Six: Scoop the cookies using a standard-size cookie scoop onto a light metal cookie sheet lined with parchment paper.

Optional Step: Use a large round cookie cutter to round the edges of your hot cookies.

Step Seven: Bake for 9-10 minutes. Remove and allow the cookies to sit on the pan for 5-10 minutes while they cool and set.

Step Eight: Remove the cookies and let them cool completely before frosting.

Step Nine: Combine marshmallow creme, powdered sugar, vanilla, and cream in a medium-sized bowl with a hand mixer. Mix until smooth. If the frosting seems too runny, add 1/2 cup more powdered sugar.

• Too thick? Add a little more cream, about 1 teaspoon at a time, mixing after each addition
• Too loose? Add more powdered sugar gradually. The original recipe allows up to an additional 1/2 cup; start with a smaller amount and check the consistency before adding the rest

Step Ten: Scoop a spoonful of frosting on the backside of one cookie and top it with another cookie to make a sandwich. This recipe should make 11-12 browned butter oatmeal cream pies.

Quick Oats or Old-Fashioned Rolled Oats?

Oat type affects the finished texture. Old-fashioned rolled oats keep more of their shape and give cookies a more noticeable oat texture. Quick oats are cut into smaller pieces and produce a finer texture. Steel-cut oats are not a direct substitute in this recipe.

Use the oat type specified in the recipe card (Old-Fashioned Rolled Oats) for the intended result, rather than switching types and expecting identical cookies.

How do I achieve the perfect browned butter?

Mastering the art of browning butter can transform your cooking, making the process enjoyable and worry-free. Begin by placing your butter in a small saucepan over a medium flame until it melts completely. Shortly after melting, the butter will enter a boiling phase, accompanied by a series of popping sounds. These sounds are crucial cues during the browning process, so pay attention.

As the boiling continues, a thick foam will develop, yet the popping will persist. At this point, it’s essential to stay close and listen attentively. The moment the popping ceases, while at the same time the foam remains, it signifies it’s the time to remove the butter from the heat.

By gently stirring the butter, you’ll notice brown specks appearing through the foam, accompanied by a rich, nutty aroma. This indicates that your browned butter is ready.

Equipment Needed to Make Browned Butter Oatmeal Cream Pies

• Medium, light-colored saucepan: Makes it easier to see the butter’s milk solids change color
• Heat-safe spatula: For stirring the butter and scraping the browned bits into the bowl (you have to scrape up the bits off the bottom of the pan)
• Stand mixer: For mixing the cookie dough
• Cookie scoop: Helps portion cookies evenly so they bake consistently and pair neatly. I use a large scoop (2.5-3 tablespoons)
• Light metal baking sheets and parchment paper: The pan and liner used in this recipe’s baking method
• Cooling rack: Lets the cookies cool completely before assembly
• Optional piping bag: For distributing the filling neatly. A spoon or small spatula works too
• Optional round cookie cutter: For gently rounding the cookies immediately after baking

Storage tips

Store assembled oatmeal cream pies in an airtight container at room temperature. The recipe’s proportions make the little bit of cream shelf-stable; refrigeration is optional if you want to keep them longer than a few days. But I personally leave them at room temperature.

For best quality, enjoy the sandwiches within 3–4 days.

The cookies may soften after a day with the filling, so a next-day sandwich can have a slightly different texture than one you assemble and eat immediately.

Freezing options

Arrange the assembled oatmeal cream pies in a single layer on a baking sheet and freeze until firm. Transfer them to an airtight freezer container or bag, separating layers with parchment or wrapping the sandwiches individually.

Freeze for up to 3 months for best quality. Thaw in the refrigerator, then let your serving sit out briefly before enjoying. Freezing them individually makes it easy to grab just one or two.

Making ahead

You can bake the cookies ahead and fill them later. Cool completely, then store the unfilled cookies in an airtight container at room temperature for up to 2 days, or freeze them for longer storage.

For the freshest assembly, make the frosting when you’re ready to fill the cookies. If preparing the frosting ahead, cover and refrigerate it, then stir and check its consistency before piping or spreading.

You can also assemble the sandwiches ahead and freeze them using the instructions above.

Like your childhood, but better

This recipe is inspired by Little Debbie’s Oatmeal Creme Pies, with browned butter adding a deeper, nuttier flavor to the homemade cookies. You still get that familiar combination of oatmeal cookies and sweet filling, with chewy centers and a little crispness around the edges when freshly baked.

Whether you’re making them for a special occasion or just because, these cookie pies are as fun to put together as they are to eat.

Serving suggestions

Here is my ideal meal plan using these delicious brown butter oatmeal cream pies:

Option one, a girl’s lunch: A crisp salad like my grilled chicken chopped salad or my BLT pasta salad, with an oatmeal cream pie for dessert.

Option two, the sack lunch: The best chicken salad and an oatmeal cream pie. Pack it in an insulated lunch bag with an ice pack to keep it chilled until lunchtime.