Description
Oatmeal Cream Pie Cake is a nostalgic dessert inspired by the classic cookie, featuring moist oatmeal cake layers sandwiched with a fluffy vanilla cream filling.
Ingredients
- 1 cup old-fashioned rolled oats
- 1 1/4 cups boiling water
- 1/2 cup unsalted butter, softened
- 1 cup brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1 teaspoon ground cinnamon
- 1/2 teaspoon salt
- 1/2 cup unsalted butter, softened (for filling)
- 1 cup powdered sugar
- 1 jar (7 oz) marshmallow creme
- 1 teaspoon vanilla extract (for filling)
Instructions
- Preheat oven to 350°F (175°C) and grease two 8-inch round cake pans.
- Pour boiling water over oats and let sit for 20 minutes.
- Cream butter, brown sugar, and granulated sugar until light and fluffy.
- Add eggs one at a time, then mix in vanilla extract.
- Stir in soaked oats.
- In a separate bowl, whisk flour, baking soda, cinnamon, and salt.
- Gradually add dry ingredients to wet mixture until just combined.
- Divide batter evenly between prepared pans.
- Bake for 25–30 minutes until a toothpick inserted comes out clean.
- Cool cakes completely.
- For the filling, beat butter until creamy, then add powdered sugar, marshmallow creme, and vanilla.
- Spread filling between cake layers.
- Slice and serve.
Notes
- Ensure cakes are completely cool before adding filling.
- Store covered in the refrigerator.
- Flavor improves after chilling.
- Prep Time: 25 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American