My decadent Oreo Cake captures the flavor of your favorite cookie but elevates it into something even more irresistible. The chocolate layers are made with black cocoa—the same kind used in Oreos—which gives the cake a deep, true “Oreo” chocolate taste. These layers are rich and stay moist for several days when stored properly.
The cake is filled and frosted with a creamy Oreo cream cheese frosting that tastes like the cookie’s signature filling, and it’s finished with a glossy chocolate drip for a dramatic, professional look. This cake is easy to assemble at home and makes a show-stopping centerpiece for birthdays, celebrations, or any time you want to impress family and friends.
Why you’ll love this Oreo Cake:
Rather than sprinkling Oreo pieces into a vanilla cake, this version leans fully into the Oreo experience: dark chocolate cake layers surrounding a rich, creamy filling. The combination of black cocoa in the batter and crushed Oreos in the frosting recreates that classic cookie flavor in cake form.
Rich, Moist Chocolate Cake – The layers are intensely chocolatey without being overly sweet, and they keep well in the refrigerator for several days.
Creamy Oreo Frosting – A whipped cream cheese-based frosting filled with finely crushed Oreos recreates the cookie’s creamy center and adds texture and flavor.
Black Cocoa for Real Oreo Flavor – Using black cocoa gives the cake the deep color and sharp cocoa flavor associated with Oreos. If unavailable, high-quality Dutch-process cocoa is a good substitute.
Photography for this recipe provided by Creating Kaitlin. Other photos by Stephanie Simmons unless otherwise noted.
Ingredient Overview:
The full recipe with exact measurements and step-by-step directions appears in the recipe card below. This overview highlights the key components and useful tips.
- Butter – Salted butter provides a fuller flavor in the frosting, though unsalted may be used if preferred. The cake uses oil for tender crumb, but butter in the frosting lends richness.
- Black Cocoa Powder – This is what gives Oreo cookies their distinctive dark color and flavor. If you can’t find black cocoa, use Dutch-process cocoa or regular natural cocoa.
- Buttermilk – Adds tenderness and tang; use real buttermilk rather than a substitute for best results.
- Oreos – Regular Oreos work best for flavor balance. Different Oreo varieties (mint, peanut butter) can be used for creative variations.
- Cream Cheese – Full-fat block-style cream cheese gives the most stable, flavorful frosting.
Recipe Substitutions & Variations:
Cream Cheese Frosting – If you prefer a simpler cream cheese frosting without Oreo crumbs, you can omit the crushed cookies and adjust the powdered sugar for your preferred texture and sweetness.
Sheet Cake – To make this as a sheet cake, prepare two-thirds of the batter and bake in a 9×13 pan. Use half the frosting and the chocolate drip to finish.
How to Make This Oreo Cake:
Step 1 – Bloom the Cocoa: Heat the water until nearly boiling and whisk in the black cocoa and espresso powder until smooth. Set aside to cool slightly while you prepare the dry ingredients.
Step 2 – Finish the Batter: In a large bowl whisk together flour, sugars, baking soda, baking powder, and salt. When the cocoa mixture is warm but not hot, whisk in the buttermilk, oil, and vanilla. Lightly beat the eggs, then combine the wet and dry ingredients, stirring gently until mostly smooth; a few small lumps are fine.
Step 3 – Bake the Layers: Divide the batter between prepared pans and bake at 350°F for about 25–33 minutes, or until a toothpick comes out with moist crumbs. Cool in the pans for 10 minutes, then invert onto wire racks to cool completely before frosting.
Step 4 – Make the Frosting: Pulse Oreos into fine crumbs, then beat butter until creamy. Add powdered sugar in batches, using heavy cream to reach a spreadable consistency. Mix in vanilla, a pinch of salt, cream cheese (briefly softened), and the Oreo crumbs. Taste and adjust sugar or salt as needed.
Step 5 – Assemble the Cake: Place the first cake layer on a plate, pipe or spread frosting evenly, add the next layer, and repeat. Use a thin crumb coat to seal in crumbs, chill briefly, then apply the final layer of frosting. Chill again so the cake is firm before adding the chocolate drip.
Step 6 – Make the Chocolate Drip: Heat heavy cream until it simmers, pour it over finely chopped semi-sweet chocolate, let sit, then stir until smooth. When the ganache is slightly thick but still pourable, pour onto the center of the chilled cake and gently nudge it outward while rotating to create drips down the sides. Chill to set.
Finish with piped frosting borders and a garnish of mini or whole Oreos and Oreo crumbs for texture and decoration.
Make-Ahead Tips:
Cake Layers – Bake and cool layers, then wrap each tightly in plastic wrap. Refrigerate up to 24 hours before assembling, or freeze (wrapped with foil) for up to 4 weeks. Thaw in the fridge overnight.
Frosting – Make up to 48 hours ahead and refrigerate in a covered container. Bring to room temperature and rewhip briefly before using.
Assembled Cake or Slices – Freeze without the chocolate drip. Wrap thoroughly in plastic and foil and store in a sealed container or freezer bag for 3–6 weeks. Thaw in the fridge overnight.
Expert Baking Tips:
Oven Thermometer – Ovens vary; an oven thermometer helps ensure accurate baking temperatures and more consistent results.
Kitchen Scale – Weighing ingredients yields more reliable results than volume measurements and improves repeatability.
Scale the Recipe – For a smaller cake, halve the recipe and bake in three 6-inch pans.
More Oreo-Inspired Desserts
Cheesecake
Black Forest Cheesecake
No-Bake Desserts
Silky No-Bake Peanut Butter Pie
Brownies & Bars
Fudgy Red Velvet Oreo Brownies
Cheesecake
Peanut Butter Cheesecake
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Ingredients
For the Cake Batter
- 1 and 1/2 cups hot water (355 g)
- 1 cup black cocoa powder (111 g)
- 1 tbsp espresso powder
- 3 cups all-purpose flour (381 g)
- 1 and 1/2 cups granulated sugar (315 g)
- 1 and 1/2 cups light brown sugar, packed (330 g)
- 3 tsp baking soda (16 g)
- 1 and 1/2 tsp baking powder (5 g)
- 3/4 tsp salt
- 1 and 1/2 cups buttermilk, room temperature (360 g)
- 3/4 cup vegetable oil (164 g)
- 3 large eggs, room temperature
- 1 tbsp vanilla extract (15 g)
For the Frosting
- 13 whole Oreos
- 1 and 1/2 cups salted butter, room temperature (340 g)
- 6 and 1/3 cups powdered sugar (728 g)
- 3 tbsp heavy cream (or milk) (45 g)
- 1 tbsp vanilla extract (15 g)
- Pinch of salt
- 16 ounces cream cheese, briefly softened (452 g)
For the Chocolate Drip
- 4 ounces semi-sweet chocolate, finely chopped (113 g)
- 1/2 cup heavy cream (120 g)
- 1–3 tsp vegetable oil, if needed
- Mini and whole Oreos, for garnish
- Oreo crumbs, for garnish
Instructions
- Prep: Preheat the oven to 350°F. Prepare three 9-inch cake pans by greasing, lining with parchment, and dusting with flour.
- Make the Cake Batter: Add hot water to a large glass measuring cup, whisk in the black cocoa and espresso powder until dissolved, and let cool until lukewarm. Whisk together the dry ingredients in a large bowl. Add oil, buttermilk, and vanilla to the cocoa mixture, lightly beat the eggs, then combine the wet and dry ingredients and stir gently until combined.
- Bake: Divide the batter evenly between prepared pans and bake at 350°F for 25–33 minutes. Let cool in the pans for 10 minutes, then invert onto cooling racks and cool completely.
- Make the Frosting: Pulse Oreos into fine crumbs. Beat butter until creamy, add powdered sugar in batches and heavy cream as needed, then mix in vanilla, a pinch of salt, cream cheese, and Oreo crumbs. Adjust to taste.
- Assemble: Spread frosting between layers, apply a thin crumb coat and chill, then finish with a final coat of frosting. Smooth with a scraper and chill again before the ganache drip.
- Chocolate Drip: Pour hot cream over chopped chocolate, let sit, stir until smooth, and cool slightly until pourable. Pour onto the center of the chilled cake and coax over the edges to create drips. Chill until set, then garnish with Oreos and crumbs.
- Serve & Store: Chill briefly to set, then store leftovers in the refrigerator in an airtight container. Leftovers keep well for 5–6 days.
Notes
Cocoa Powder: Black cocoa gives the most authentic Oreo flavor, but Dutch-process or natural cocoa will also work. Each yields a slightly different color and flavor intensity.
Cream Cheese: Allow cream cheese to soften briefly at room temperature—over-softening can make frostings runny. If frosting becomes weepy, briefly chill to firm it up.
Nutrition Note: Nutrition figures are approximate and based on dividing the cake into ten slices; you can stretch servings to 20 with smaller pieces.