Cakes & CupcakesNo. 8445 · The 2026 edition
Black Velvet Cake with Marshmallow Spiderweb
A rich black velvet cake wrapped in a gooey marshmallow spiderweb—spooky and delicious!
Our own summary of the original — the full post and photos live at lemonblossoms.com.
This black velvet cake gets its dark color from black cocoa powder and black food coloring. The moist, coffee-infused layers are frosted with a creamy black cocoa buttercream, then wrapped in a stretchy marshmallow spiderweb. Top with candy 'eggs' and plastic spiders for a creepy Halloween treat.
Ingredients
Directions
- Set your oven to 350°F. Grease two 9-inch round cake pans with nonstick spray and set aside.
- In a large bowl, whisk flour, sugar, cocoa powder, baking soda, baking powder, and salt until combined.
- In another bowl, mix eggs, coffee, buttermilk, oil, and vanilla.
- Gradually add the dry mixture to the wet, stirring until just combined—the batter will be thin. Stir in black food coloring (1-2 teaspoons) until evenly colored.
- Pour the batter evenly into the pans. Bake for about 25 minutes, until a toothpick inserted in the center comes out clean.
- Let cakes cool in pans for 15 minutes. Run a knife around the edges, then invert onto a wire rack to cool completely.
- In a large bowl, combine melted butter and black cocoa powder. Alternately add sifted powdered sugar and milk, mixing until it reaches a spreadable frosting consistency. Mix in vanilla and black food coloring.
- Once cakes are cool, use a serrated knife to level the tops. Place one layer on a plate or stand, spread a layer of frosting on top. Add the second layer, then frost the entire cake. Set aside to make the marshmallow web.
- Put marshmallows in a large microwave-safe bowl. Microwave for about 30 seconds until they begin to soften. Stir, then let cool slightly.
- Wearing gloves, dip your fingers into the warm marshmallow and stretch it into thin strands. Wrap these strands around the cake to create a web effect. Let set for about 10 minutes.
- Place a pile of candy on top of the cake to resemble spider eggs. Add extra marshmallow web if you like, and top with a few plastic spiders for decoration.
Per serving
- 18.0 fat g
- 96.0 carbs g
- 75.0 sugar g
- 546.0 calories
- 5.0 protein g
More photos
Photos hosted by lemonblossoms.com.