Name: Oatmeal Cream Pie Cake Recipe
Prep time: 30 min
Cook time: 22 min
Total time: 1 h 15 min
Cuisine: American
Ingredients: 2 1/2 cups (575 g) water; 2 cups (180 g) quick cook oats, uncooked; 2 2/3 cups (226 g) all purpose flour; 1 tbsp + 1 tsp ground cinnamon; 1 teaspoon fine sea salt; 1/2 tsp nutmeg; 2 teaspoon baking soda; 1 cup (226 g) unsalted butter, room temperature; 1 cup (200 g) Domino® Granulated Sugar; 1 cup (200 g) Domino® Light Brown Sugar, packed; 1 tbsp vanilla extract; 3 large eggs (150 g), room temperature; 1/4 cup (65 g) full-fat sour cream, room temperature; 2 1/2 cups (565 g) unsalted butter, room temperature; 4 cups (450 g) powdered sugar; 2 tbsp heavy cream; 2 tsp vanilla extract; 1 tsp vanilla bean paste; 1 cup (165 g) white chocolate chips; 1/4 cup + 3 tbsp (85 g) heavy cream; white food coloring, optional but makes the glaze more white instead of yellow; oatmeal cream pie cookies, for decorating

Jump to Recipe· 4.3 from 43 reviews

If you’ve ever dreamed about biting into the nostalgia of a classic oatmeal cream pie, but in a grand, crowd-pleasing format, this Oatmeal Cream Pie Cake Recipe is your answer. Imagine layers of moist, cinnamon-spiced oatmeal cake lovingly sandwiched with a silky, lush vanilla frosting, all draped in a glossy white chocolate glaze that adds just the right touch of elegance. It’s like your favorite childhood treat grew up and became the star of any celebration — every forkful bursting with warm spices, creamy sweetness, and that inviting texture that makes you want to savor every bite.

Ingredients You’ll Need

The image shows eleven white bowls and one stick of butter placed on a white marbled surface, each holding different baking ingredients. At the center is a large white bowl filled with white flour. Surrounding it are smaller white bowls containing light brown brown sugar with a grainy texture, light beige oats with a rough texture, smooth white sour cream, smooth white granulated sugar, small shiny white white chocolate chips, and a mix of brown cinnamon powder in a small white dish. Two white bowls hold raw eggs with yellow yolks and clear egg whites, while two small clear measuring cups contain clear water and white cream. A stick of pale yellow butter is placed near the center bottom. Everything is arranged neatly in a flat lay view with labels identifying each ingredient. Photo taken with an iphone --ar 4:5 --v 7

Just like the charm of any homemade dessert, the magic here lies in a handful of simple, yet thoughtfully chosen ingredients. Each one is essential, contributing to the rich flavors, tender crumbs, or that irresistible creamy finish that defines the Oatmeal Cream Pie Cake Recipe.

Water (2 1/2 cups): Hydrates the oats for the perfect tender texture in the cake.
Quick cook oats (2 cups): Adds wholesome body and that signature hearty chewiness.
All-purpose flour (2 2/3 cups): Provides the cake’s structure; measuring it right is key for a tender crumb.
Ground cinnamon (1 tbsp + 1 tsp): Infuses warm, cozy spice notes reminiscent of classic oatmeal pies.
Fine sea salt (1 tsp): Balances sweetness and enhances all the flavors.
Nutmeg (1/2 tsp): Adds depth and a hint of aromatic richness.
Baking soda (2 tsp): Gives the cake a gentle lift for ideal fluffiness.
Unsalted butter (1 cup, room temperature): Delivers moistness and a luscious richness.
Domino® Granulated Sugar (1 cup): Sweetens the cake while helping it brown beautifully.
Domino® Light Brown Sugar (1 cup, packed): Brings subtle caramel notes and extra moisture.
Vanilla extract (1 tbsp): Brightens the flavor with that classic vanilla warmth.
Large eggs (3, room temperature): Bind everything together and add tenderness.
Full-fat sour cream (1/4 cup, room temperature): Keeps the cake moist and adds a slight tang.
Unsalted butter for frosting (2 1/2 cups, room temperature): The base for the rich, creamy vanilla frosting.
Powdered sugar (4 cups): Sweetens the frosting perfectly while creating that silky smooth texture.
Heavy cream (2 tbsp in frosting + 1/4 cup + 3 tbsp in glaze): Adds richness and helps achieve ideal consistency.
Vanilla extract (2 tsp) & vanilla bean paste (1 tsp): Elevates the frosting’s flavor with pure vanilla essence and exquisite vanilla bean flecks.
White chocolate chips (1 cup): For the luscious, glossy white chocolate glaze topping.
White food coloring (optional): Makes the glaze appear wonderfully white instead of pale yellow.
Oatmeal cream pie cookies (for decorating): Adds a playful crunch and enhances the theme beautifully.

How to Make Oatmeal Cream Pie Cake Recipe

Step 1: Prepare the oatmeal base

Start by bringing water to a boil, adding the quick cook oats, then removing the pot from heat. Cover it and let the oats steep for 20 minutes, soaking up that hot water until perfectly tender. Cooling the oats to room temperature at this stage is essential to keep your batter balanced and smooth.

Step 2: Mix the dry ingredients

While the oats are cooking, whisk together the all-purpose flour, baking soda, cinnamon, nutmeg, and sea salt. This blend of spices and leavening agents sets the flavorful foundation for your cake layers.

Step 3: Cream butter and sugars

In your stand mixer, beat the unsalted butter with the granulated and brown sugars for five minutes until the mixture is light and fluffy. This technique aerates the batter, ensuring your cake will have a tender, melt-in-your-mouth crumb.

Step 4: Incorporate eggs, vanilla, and sour cream

Slowly add in the vanilla extract, room temperature eggs, and sour cream, mixing until everything is well combined and smooth. Don’t forget to scrape down the sides to capture every bit of batter.

Step 5: Blend in oats and dry mix

Fold the cooled oats into the wet mixture, then gently add the flour and spice mixture. The batter will become thick and hearty, signaling you’re right on track for that perfect oatmeal cake texture.

Step 6: Bake the cake layers

Divide the batter evenly into three lined 8-inch cake pans. Bake at 350°F (180°C) for 20 to 22 minutes until a toothpick inserted comes out with a few moist crumbs. Let them cool in the pans before carefully removing and placing on wire racks.

Step 7: Make the vanilla frosting

Beat the butter until light and fluffy, then gradually add powdered sugar on low speed. Once incorporated, increase speed and beat until silky smooth. Finish by mixing in heavy cream, vanilla extract, and vanilla bean paste — this frosting is pure vanilla heaven, perfect for your cake layers.

Step 8: Assemble the Oatmeal Cream Pie Cake Recipe

Start with a cake layer, spread a generous cup of vanilla frosting on top, then repeat with remaining layers. Invert the top layer so the surface is perfectly flat, then cover the sides and top with a thin, even coat of frosting to keep everything sealed and tidy.

Step 9: Prepare the white chocolate glaze

Warm the heavy cream and pour it over white chocolate chips, stirring until smooth and glossy. If you want that classic bright white look, stir in a bit of white food coloring. Allow the glaze to cool slightly so it won’t melt your frosting when poured.

Step 10: Glaze and decorate the cake

Place your cake on a wire rack with a tray underneath and slowly pour the glaze over the center, letting it fall gracefully over the edges. Once it’s set, sprinkle crumbled oatmeal cream pie cookies over the top for an irresistible decorative crunch and a nod to the treat that inspired this masterpiece.

How to Serve Oatmeal Cream Pie Cake Recipe

The image shows a white round cake on a wooden plate against a white marbled background. The cake has three visible layers, each separated by thin brown cake layers with light beige frosting in between. The top of the cake is smooth with the same light beige frosting covering it. In the next stage, a glass measuring cup with pale yellow sauce is shown on the white marbled surface with a spoon inside. Following that, the cake has a glossy light yellow glaze dripping elegantly down its sides, still on the wooden plate. Finally, the top of the cake is decorated with broken pieces of brown cookies arranged around the edge, with some cookie crumbs scattered nearby. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Adding a sprinkle of finely chopped oatmeal cream pie cookies or a few whole mini cookies around the base makes the presentation inviting and thematic. Fresh berries or a dusting of cinnamon can also add a touch of color and contrast that pairs beautifully with the cake’s warm spices.

Side Dishes

This cake shines on its own but pairs wonderfully with a scoop of vanilla bean ice cream or a drizzle of caramel sauce. A hot cup of coffee or spiced chai tea complements the cinnamon and vanilla layers perfectly, making it a cozy dessert experience.

Creative Ways to Present

Try serving individual cake slices with a small dollop of whipped cream and a single oatmeal cream pie cookie leaned artistically on the side. For special occasions, place the cake on a rustic wooden board surrounded by scattered oats and cinnamon sticks to emphasize its warm, homey roots.

Make Ahead and Storage

Storing Leftovers

Wrap the cake tightly in plastic wrap and store it in the refrigerator for up to 4 days to keep the frosting fresh and moist. Allow it to come to room temperature before serving for the best flavor and texture.

Freezing

The assembled, glazed cake can be frozen for up to 3 months. Wrap it securely with plastic wrap, then aluminum foil to protect from freezer burn. Thaw overnight in the fridge and let it warm to room temperature before slicing.

Reheating

Since this cake is best enjoyed cool or at room temperature, avoid reheating. Instead, simply allow refrigerated or thawed slices to sit out for 30 minutes before serving to recapture that softness and creamy flavor.

FAQs

Can I use old-fashioned oats instead of quick cook oats?

While old-fashioned oats are thicker and take longer to soften, you could try soaking them longer before adding to the batter. However, quick cook oats are recommended for the perfect texture in this recipe.

What if I don’t have sour cream on hand?

You can substitute sour cream with an equal amount of plain Greek yogurt or buttermilk to maintain moisture and slight tang, which complements the spices beautifully.

How do I measure flour properly for this recipe?

It’s crucial to use the spoon-level method: fluff the flour, spoon it gently into your measuring cup, and level it off. This prevents packing too much flour and helps keep your cake tender.

Can I make this cake gluten-free?

To make a gluten-free version, substitute the all-purpose flour with a gluten-free flour blend that includes xanthan gum. Be aware the texture might be slightly different but should still be delicious.

What is the best way to store the oatmeal cream pie cookies for decoration?

Keep the cookies in an airtight container at room temperature to maintain their crispness until you’re ready to decorate. Avoid humid environments which can make them soft.

Final Thoughts

If you’re looking for a dessert that combines heartfelt nostalgia with stunning presentation, the Oatmeal Cream Pie Cake Recipe is a must-try. It’s a labor of love that brings the warmth of familiar flavors with an elegant twist. Trust me, friends will be raving about this cake long after the last crumb has disappeared — so get ready to share joy, one delicious bite at a time!