Name: Homemade Oatmeal Cream Pies
Prep time: 25 min
Cook time: 12 min
Total time: 37 min
Yield: 10 cream pies
Cuisine: American
Ingredients: 1 cup (226g) unsalted butter, softened; 1 cup (200g) light brown sugar, packed; 1/2 cup (100g) granulated sugar; 2 large eggs; 1 teaspoon vanilla extract; 1 1/2 cups (190g) all-purpose flour; 1/2 teaspoon baking soda; 1/2 teaspoon ground cinnamon; 1/2 teaspoon salt; 2 cups (180g) old-fashioned rolled oats; 1/2 cup (113g) unsalted butter, softened (for filling); 1 1/2 cups (180g) powdered sugar (for filling); 1 tablespoon milk (for filling); 1 teaspoon vanilla extract (for filling)

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Hey y’all! If you have fond memories of opening your lunchbox to find a sweet, creamy surprise, you’re going to love these Homemade Oatmeal Cream Pies. These delightful treats combine soft, chewy oatmeal cookies with a fluffy marshmallow filling, making them the perfect dessert for family gatherings, bake sales, or just a cozy afternoon snack. Ready to relive a classic favorite in your own kitchen? Let’s get cooking!

Why You’ll Love This Homemade Oatmeal Cream Pies Recipe

Soft and chewy – a truly nostalgic treat with homemade goodness.

Simple ingredients you likely have in your pantry.
Perfect for sharing at parties or packing in lunchboxes.
Customizable—make them as big or small as you like!

Irresistible cream filling that pairs perfectly with spiced oats.

Ingredients for Homemade Oatmeal Cream Pies

For the Oatmeal Cookies:

1 cup (2 sticks) unsalted butter, softened
3/4 cup packed light brown sugar

1/2 cup granulated sugar
2 large eggs, room temperature
1 tablespoon molasses

1 teaspoon vanilla extract
1 1/2 cups all-purpose flour
1/2 teaspoon baking soda

1/2 teaspoon salt
1 teaspoon cinnamon
1/4 teaspoon ground nutmeg

2 cups old-fashioned rolled oats

For the Cream Filling:

1/2 cup (1 stick) unsalted butter, softened
1 1/2 cups powdered sugar

1 jar (7 oz) marshmallow creme
2 teaspoons vanilla extract
2 tablespoons heavy cream (as needed)

How to Make Homemade Oatmeal Cream Pies

Step 1: Prepare the Oatmeal Cookie Dough

In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy (about 2-3 minutes).
Beat in the eggs, one at a time, followed by the molasses and vanilla extract.
In a separate bowl, whisk together flour, baking soda, salt, cinnamon, and nutmeg.

Gradually add the dry ingredients to the wet, mixing until just combined. Stir in the oats.

Step 2: Bake the Oatmeal Cookies

Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper.
Scoop heaping tablespoons of dough onto the sheets, spacing about 2 inches apart.

Bake for 10-12 minutes, or until edges are golden and centers are set but still soft.
Let cookies cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.

Step 3: Make the Cream Filling

In a medium bowl, beat the softened butter until creamy.

Add powdered sugar and beat until smooth, then mix in marshmallow creme and vanilla extract.
If needed, add heavy cream 1 tablespoon at a time until the filling is fluffy and spreadable.

Step 4: Assemble the Homemade Oatmeal Cream Pies

Pair up the cooled cookies by size.

Pipe or spread a generous amount of cream filling onto the flat side of half the cookies.
Top with the other halves, pressing gently to sandwich together.

Notes for Perfect Oatmeal Cream Pies

For cookies with uniform shape, use a cookie scoop. Check out these tips from Serious Eats.

If your filling feels too stiff, add a splash more cream until it’s easy to spread.
For extra flavor, toast your oats for 5 minutes before mixing them in.