
This decadent Black Velvet Halloween Cake is my go-to showstopper for spooky gatherings and special fall occasions. Picture two layers of chocolate cake so moist and tender they almost melt on the fork, a velvety blackberry compote sandwiched between, and the silkiest black cocoa buttercream draped over it all. Every bite is rich, fruity, and darkly sophisticated without a drop of food dye thanks to the magic of black cocoa powder.
The first time I served this cake at a Halloween party, everyone thought it was bakery-bought until they watched me slice it. Now it is the most-requested treat every October in my house.
Ingredients
- Black cocoa powder: brings the signature black-as-night color with an intense but smooth chocolate flavor look for high quality brands online or at specialty stores
- All purpose flour: gives the cake a soft crumb sift before using for lightness
- Granulated sugar: delivers the perfect level of sweetness and helps create a tender texture
- Eggs: hold the cake together and add richness let them warm to room temperature for best results
- Buttermilk: creates a slight tang and keeps the crumb extra moist use full fat if possible
- Canola or vegetable oil: maintains moisture through every bite pick a neutral oil for clean flavor
- Baking powder and baking soda: team up to ensure a lofty tender rise check they are fresh to guarantee lift
- Hot strong coffee: enhances and deepens the chocolate notes while keeping the crumb extra tender
- Vanilla extract: brings out the best in both the chocolate and blackberry flavors choose pure vanilla if you can
- Fresh blackberries: deliver bright tart pockets of fruit in the compote plump ripe berries work best but frozen can substitute in a pinch
- Lemon zest and juice: sharpen up the berry compote and balance the sweetness pick a lemon that feels heavy for its size
- Cinnamon stick: adds complexity to the berry layer just a brief simmer infuses subtle warmth remove after cooking
- Cornstarch: thickens the compote for a clean slice make sure it is fully dissolved before adding
- Unsalted butter and full fat cream cheese: form the silky frosting use both at room temperature for a lump free finish
- Powdered sugar: gives sweet smoothness to the frosting always sift to avoid clumps
- Chocolate skulls and dried rose petals: decorate for a festive Halloween finish make or find skull molds online or in stores
Step-by-Step Instructions
- Prepare Cake Pans:
- Preheat your oven to three hundred fifty degrees and spray two eight inch cake pans with baking spray. Line both the bottoms and sides with parchment paper pressed snugly to prevent sticking and for easy cake removal later
- Mix Dry Ingredients:
- In a large mixing bowl sift together flour black cocoa powder sugar baking powder baking soda and a pinch of salt. Sifting is important for this cake to achieve an even color and the smoothest possible crumb
- Blend Wet Ingredients:
- In another bowl whisk the buttermilk oil eggs and vanilla until fully blended. The mixture should be homogenous and smooth which ensures even hydration through your batter
- Combine Wet and Dry:
- Make a well in the center of your dry ingredients then pour in the wet mixture all at once. Stir gently but thoroughly until you no longer see streaks of flour. Now pour in the hot coffee and mix just until the batter comes together this will thin the batter and intensify the chocolate flavor
- Portion and Bake:
- Divide the batter evenly between your pans. Using a kitchen scale or measuring cup helps cakes bake up perfectly even. Place in the center of the preheated oven and bake thirty to thirty three minutes until a toothpick slid in the center comes out clean with a few moist crumbs attached
- Make Blackberry Compote:
- In a medium saucepan combine blackberries sugar lemon juice and zest and a cinnamon stick. Stir over medium heat as the berries burst and the mixture boils for five to six minutes. Mix cornstarch with a splash of water until smooth then stir this in and continue cooking until thickened. Remove the cinnamon stick and cool the compote fully in the fridge so it sets enough to layer
- Cool Layers:
- Once cakes are baked set the pans on a cooling rack until room temp before releasing from the pans. This step is crucial to prevent tearing and to keep the crumb tender
- Make Frosting:
- With a hand mixer or stand mixer beat together room temperature cream cheese and butter until fluffy. Sift in powdered sugar black cocoa and a little salt. Beat until smooth then mix in vanilla. Scrape the bowl and beat once more for a perfectly silky texture
- Assemble Cake Layers:
- Place one cake round on your display plate and spread a thin swoop of frosting underneath to keep it steady. Using a piping bag pipe a ring of buttercream just inside the edge of the cake to create a dam. Fill the center with a thick layer of cooled blackberry compote then gently set the second cake layer on top with the flat bottom side facing up for a neat smooth finish
- Crumb Coat and Frost:
- Spread a thin layer of buttercream over the top and sides of the cake to trap crumbs. Chill for twenty minutes so this coat firms up then cover the entire cake in the remaining frosting, smoothing the top and sides with an offset spatula or cake scraper
- Decorate:
- Finish with chocolate skulls fresh blackberries and a scatter of rose petals for a dramatic Halloween presentation

My favorite part of this cake is the moment I slice in and see the streak of jewel toned blackberry compote against the jet black cake layers. Last Halloween my niece insisted on helping decorate and chose extra big skulls for dramatic effect. There was not a crumb left after the party.
Storage Tips
Store leftover cake in an airtight container at room temperature for one to two days or in the fridge for as long as five days. For best flavor and texture let slices come to room temperature before serving.
If you want to freeze the cake cut it into individual slices wrap each tightly in plastic then store in a sealed container or freezer zip bag. To thaw place slices in the fridge overnight.
Ingredient Substitutions
If you cannot find black cocoa powder use Dutch process cocoa for a slightly lighter cake plus a drop of black food color if you want to boost the effect.
No buttermilk Use whole milk mixed with a little lemon juice or vinegar and let sit ten minutes to make a quick substitute with similar tang and tenderness.
Any favorite berry can stand in for the blackberry jam. Blueberry cherry even raspberry preserves work well. For the frosting you can use mascarpone cheese in place of cream cheese for a softer flavor.
Serving Suggestions
This black velvet showpiece is perfect with strong black coffee espresso or even a spiced black tea.
For extra elegance serve with a little whipped cream or a few candied citrus peels alongside each slice.
Dress up for a Halloween dessert table with candied flowers and chocolate curls or keep it simple with a pile of glossy blackberries.
Cultural and Historical Context
Black velvet cake is a dramatic twist on the classic red velvet a Southern staple cake known for its moist texture and subtle cocoa flavor. The black version uses ultra Dutched cocoa powder which brings a less sweet more mature flavor and a striking appearance reminiscent of cookies and cream desserts. Traditionally red velvet cake was a symbol of luxury and celebration. This black velvet is just as festive but perfect for spooky season parties.

Common Recipe Questions
- → What gives black velvet cake its color?
Jet-black color comes from using black cocoa powder, providing a deep hue without food dyes.
- → How do you keep the cake moist?
The addition of oil, buttermilk, and the right mixing method helps create a soft, velvety crumb.
- → Can I use regular cocoa powder instead of black cocoa?
Black cocoa offers a distinct color and flavor; Dutch-process cocoa can substitute but yields a lighter, milder result.
- → What type of filling is used?
A homemade blackberry compote brings fruitiness and balances the chocolate's richness in each bite.
- → Are there tips for frosting and decorating?
Apply a crumb coat, chill, then use black cocoa buttercream. Decorate with chocolate skulls and fresh berries for flair.
- → How should leftovers be stored?
Store in an airtight container at room temperature for a day or refrigerate for up to five days; slices can be frozen individually.