Oatmeal Cream Pie Cake

Highlighted under Category: Sweet Italian Endings

This treat combines the cozy flavors of spiced oatmeal cake with a luscious vanilla filling and a silky-smooth white chocolate glaze. Soft layers of cinnamon and nutmeg-infused cake envelop a generous vanilla buttercream, echoing the classic cream pies. Each bite offers chewy oats, sweet vanilla, and a slight crunch from cookie crumbles on top. Decorating is simple: pour a gentle glaze, let it set, then finish with crumbled pie cookies. Perfect for celebrating fall or bringing nostalgic bakery classics to your table any time of year.

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Brought to You By Valeria Rossi
Last modified on Wed, 11 Jun 2025 20:29:54 GMT
A slice of oatmeal cream pie cake. Save
A slice of oatmeal cream pie cake. | recipesvaleria.com

This oatmeal cream pie cake brings together the nostalgic flavors of Little Debbie’s oatmeal cream pies in a homemade layered cake, making it the ultimate cozy dessert for fall or honestly any time of the year. Each bite combines tender spiced oatmeal cake, fluffy vanilla filling, and a creamy white glaze for a treat that is equal parts comforting and impressive.

Ingredients

  • Quick cook oats: these will create a tender moist crumb for the cake make sure they are not instant oats or old fashioned oats for best texture
  • All purpose flour: proper measuring is key for the best results spoon and level your flour or use a kitchen scale for precision
  • Ground cinnamon and nutmeg: these warm spices bring that nostalgic oatmeal cream pie flavor try to use fresh spices for extra aroma
  • Unsalted butter: using room temperature butter for both the cake and buttercream keeps the layers rich and the frosting fluffy quality butter helps both texture and flavor
  • Domino granulated sugar and light brown sugar: the mix of both gives sweetness and moisture use light brown sugar for a touch of caramel notes
  • Pure vanilla extract and vanilla bean paste: load up on vanilla for deep aromatic flavor in both cake and filling pick high quality for the best taste
  • Full fat sour cream: adds richness and extra moisture to keep the crumb soft use the good stuff no light or low fat
  • Powdered sugar: base for the luscious vanilla buttercream sift if it looks clumpy so your filling stays smooth
  • Heavy cream: makes both your filling and glaze ultra creamy extra rich cream works best here
  • White chocolate chips: form the glaze and bring a delicate sweetness always pick a brand you enjoy eating on its own
  • Oatmeal cream pie cookies for decorating: use the classic Little Debbie version for nostalgia or homemade for an artisan touch

Step-by-Step Instructions

Prepare the Cake Pans:
Line three 8 inch cake pans with parchment paper so the cakes release cleanly after baking
Cook the Oats:
Bring water to a boil in a medium saucepan add your oats stir well then cover and take off the heat Let the oats steam with the lid on for 20 minutes then allow to cool to room temperature this makes them soft but not mushy
Mix Dry Ingredients:
Whisk together flour baking soda salt cinnamon and nutmeg in a large bowl breaking up any clumps this evenly distributes the leaveners and spices
Cream Butter and Sugars:
Using a stand mixer beat the butter granulated sugar and brown sugar on medium speed for at least 5 minutes until pale and very fluffy scrape down the bowl so no bits are left behind this step creates the structure for a tender cake
Add Wet Ingredients:
Mix in the vanilla extract eggs and sour cream one at a time making sure each is fully incorporated before adding the next scrape the bowl again as needed
Combine Oats and Batter:
Add cooled oatmeal mixture to the wet ingredients and blend gently just until mixed avoid overmixing so the cake does not turn dense
Add Dry Mix to Wet:
Fold the dry ingredients into the batter by hand in two batches using a spatula only until just combined A thick batter is normal and helpful for a hearty texture
Bake the Cakes:
Divide the batter evenly across the pans about 600 grams each spread smooth with a spatula Bake in a preheated oven at 350 F for 20 to 22 minutes until a toothpick inserted in the center comes out with only a few moist crumbs Cool cakes in the pan on a wire rack run a thin spatula around the edge and flip cakes out gently
Prepare the Vanilla Filling:
Beat butter in a stand mixer till light and fluffy then gradually mix in sifted powdered sugar starting on low speed Once smooth add heavy cream vanilla extract and vanilla bean paste beat for another 3 to 5 minutes until airy and creamy
Assemble the Cake:
Place one cake layer on your serving plate spread about one cup of vanilla frosting over it add the next layer repeat until all layers are used up ending with the flat side of a layer on top for a clean look
Crumb Coat and Final Frosting:
Spread a thin even layer of frosting around the sides and top of cake set aside while you make the glaze
Make the Glaze:
Warm heavy cream until steaming then pour over the white chocolate chips stir until all chips are melted and glaze is silky smooth For a very white look add a drop of white food color if you want Let the glaze cool until just thickened but pourable
Glaze the Cake:
Set your cake on a wire rack with a tray underneath pour glaze in the middle and nudge to the edges so it drips over the sides Let the glaze set before moving or decorating
Decorate:
Crumble oatmeal cream pie cookies on top for garnish use larger pieces for texture and visual appeal
A slice of oatmeal cream pie cake. Save
A slice of oatmeal cream pie cake. | recipesvaleria.com

Storage Tips

You can store the finished cake covered in the refrigerator for up to four days though the flavors are best within the first forty eight hours To freeze cake layers wrap them tightly after cooling and store for up to one month when ready to use thaw at room temperature before assembling and frosting

Ingredient Substitutions

If you do not have sour cream the same amount of full fat Greek yogurt will work in a pinch for moistness and a touch of tang For an easy dairy free version use a vegan butter and a creamy non dairy yogurt plus check your chocolate chips and cookies for dairy free status

Serving Suggestions

This cake is fantastic paired with strong black coffee or a chai latte for breakfast or brunch Dress it up with a scoop of vanilla bean ice cream for an indulgent dessert or assemble mini cakes using a muffin tin for party ready individual servings

Cultural and Historical Context

The original Little Debbie oatmeal cream pie debuted in the early nineteen sixties and quickly became a cherished treat in American lunchboxes this cake revives that classic flavor memory but with a homemade twist and layers to serve a group

Frequently Asked Questions About Recipes

→ How do you achieve a moist oatmeal cake?

Letting the oats absorb boiling water and cool before mixing ensures the cake stays tender and moist. Avoid overbaking to retain a soft crumb.

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

Quick oats yield a softer texture, but old-fashioned oats can provide more chew. Pulse them briefly in a food processor for best results.

→ What’s the key to a fluffy vanilla filling?

Beat room temperature butter until light, then gradually add powdered sugar and whip until airy. Vanilla bean paste heightens flavor.

→ How do I keep the glaze from melting the frosting?

Allow the white chocolate glaze to cool before pouring it over the frosted cake, ensuring it doesn’t melt the buttercream.

→ What’s the best way to assemble the cake layers?

Alternate cake and frosting, ending with the top layer upside down for a flat surface. Finish with a thin layer of frosting before glazing.

→ Can the cake be made in advance?

The cake layers can be baked ahead and stored wrapped. Assemble and glaze just before serving for the freshest result.

Oatmeal Cream Pie Cake

Spiced oatmeal cake layered with vanilla cream and topped with silky white chocolate glaze.

Preparation Time
60 minutes
Cooking Duration
25 minutes
Overall Time Required
85 minutes
Brought to You By: Valeria Rossi

Recipe Group: Desserts

Skill Requirement: Moderate Skill Level

Cuisine Type: American

Recipe Output: 16 Number of Servings (1 triple-layer cake)

Diet Preferences: Quick Vegetarian Option

Required Ingredients

→ Oatmeal Cake

01 600 ml water
02 200 g quick-cooking oats, uncooked
03 335 g all-purpose flour
04 12 g ground cinnamon
05 6 g fine sea salt
06 2 g ground nutmeg
07 10 g baking soda
08 227 g unsalted butter, room temperature
09 200 g granulated sugar
10 220 g light brown sugar, packed
11 15 ml vanilla extract
12 3 large eggs, room temperature
13 60 ml full-fat sour cream, room temperature

→ Vanilla Filling

14 565 g unsalted butter, room temperature
15 480 g powdered sugar
16 30 ml heavy cream
17 10 ml vanilla extract
18 5 ml vanilla bean paste

→ Glaze

19 175 g white chocolate chips
20 90 ml heavy cream
21 white food coloring, optional
22 oatmeal cream pie cookies, for decorating

How to Make It

Step 01

Preheat oven to 180°C. Line the bases of three 20 cm cake pans with parchment paper and set aside.

Step 02

Bring water to a boil in a pot. Add oats, stir to combine, then remove from heat and cover. Allow oats to steep for 20 minutes. Cool to room temperature before continuing.

Step 03

In a bowl, whisk together flour, baking soda, sea salt, cinnamon, and nutmeg. Set aside.

Step 04

In a stand mixer, beat butter, granulated sugar, and light brown sugar on medium speed for 5 minutes until pale and fluffy.

Step 05

Add vanilla extract, eggs, and sour cream to the creamed mixture. Mix just until combined, scraping the bowl as needed.

Step 06

Mix in cooled oats on low speed until just combined. Fold in the dry ingredients, being careful not to overmix. The batter will be thick.

Step 07

Divide batter evenly among prepared pans (approx. 600 g per pan). Bake for 20–22 minutes, or until a toothpick comes out with a few moist crumbs. Cool completely in pans on a rack.

Step 08

Run a spatula around the edges of each cooled cake, then invert onto a wire rack to remove from pans.

Step 09

In a stand mixer, beat butter for the filling on medium speed until light and fluffy. Gradually add powdered sugar on low speed. Increase to medium and beat until creamy, about 3–5 minutes. Mix in heavy cream, vanilla extract, and vanilla bean paste.

Step 10

Place one cake layer on a cake stand. Spread 1 cup of the vanilla filling over the top. Repeat for remaining layers, finishing with the last cake upside down for a flat surface.

Step 11

Spread the remaining filling over the sides and top of the cake in a thin, even layer. Set aside.

Step 12

Gently heat heavy cream until steaming, then pour over white chocolate chips. Let stand briefly, then stir until smooth. Add white food coloring if desired. Cool glaze before use to prevent melting the frosting.

Step 13

Place cake on a wire rack over a tray. Pour glaze onto the center, allowing it to spread and drip over the edges. Let excess glaze run off before moving to a serving plate.

Step 14

Finish by topping with pieces and crumbs of oatmeal cream pie cookies.

Additional Information

  1. For optimal texture and accurate measurements, use the spoon-and-level method or a kitchen scale for flour.

Essential Tools

  • Stand mixer
  • Three 20 cm (8-inch) cake pans
  • Wire rack
  • Mixing bowls
  • Spatula
  • Parchment paper
  • Saucepan

Allergy Notes

Double-check every ingredient for potential allergenic risks. Reach out to your doctor with any concerns.
  • Contains gluten, dairy, eggs, and may contain traces of soy or nuts from processed ingredients.

Nutritional Information (Per Serving)

These nutritional details are intended for informational purposes and aren't a substitute for professional guidance.
  • Total Calories: 645
  • Fat Content: 38 grams
  • Carbohydrates: 72 grams
  • Protein Amount: 5 grams