Classic Homemade Oatmeal Cream Pies

Name: Classic Homemade Oatmeal Cream Pies
Prep time: 20 min
Cook time: 12 min
Total time: 32 min
Yield: 12
Cuisine: American
Ingredients: 1 cup unsalted butter, softened; 1 cup brown sugar, packed; 1/2 cup granulated sugar; 2 large eggs; 1 teaspoon vanilla extract; 1 1/2 cups all purpose flour; 1 teaspoon baking soda; 1/2 teaspoon salt; 3 cups old fashioned rolled oats; 1 cup marshmallow fluff; 1/2 cup unsalted butter, softened for filling; 1 cup powdered sugar

These chewy oatmeal cookies sandwiched with sweet marshmallow filling are the ultimate make ahead treat.

By Recipes By Nani· 🌍 American· August 28, 2026

recipesbynani.com

Prep

20 minutes

Cook

12 minutes

Total

32 minutes

Serves

There is something so special about an oatmeal cream pie. I love that you can bake these ahead of time because they actually taste better after the flavors have a chance to settle in the fridge for a day or two.

My best tip for these is to make sure your cookies are completely cool before you add the filling. If you try to spread the cream while the cookies are even slightly warm, you will end up with a messy situation instead of a beautiful sandwich.

🧺 Ingredients

1 cup unsalted butter, softened
1 cup brown sugar, packed
1/2 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1 1/2 cups all purpose flour
1 teaspoon baking soda
1/2 teaspoon salt
3 cups old fashioned rolled oats
1 cup marshmallow fluff
1/2 cup unsalted butter, softened for filling
1 cup powdered sugar

👩‍🍳Instructions

1
Preheat your oven to 350 degrees Fahrenheit and line two baking sheets with parchment paper.
2
Cream the butter and sugars together in a large bowl until the mixture is light and fluffy.
3
Beat in the eggs one at a time and stir in the vanilla extract.
4
Mix in the flour, baking soda, and salt until just combined, then fold in the rolled oats.
5
Scoop tablespoon sized balls of dough onto your baking sheets and bake for 10 to 12 minutes until the edges are golden.
6
Let the cookies cool completely on a wire rack while you prepare the filling.
7
Beat the marshmallow fluff, butter, and powdered sugar together until smooth.
8
Spread a generous amount of filling onto the flat side of one cookie and top with another cookie to create a sandwich.

💡 Tips

Store these in an airtight container in the refrigerator to keep the cream firm. They stay fresh for up to five days and actually get softer the longer they sit.

#dessert #cookies #make ahead #oatmeal #vegetarian

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