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Decadent Black Velvet Halloween Cupcakes with Easy Spiderweb Frosting

black velvet Halloween cupcakes - featured image

These black velvet cupcakes feature a deep black cocoa base with a tender crumb, topped with simple white buttercream frosting decorated with a spooky spiderweb design made from melted chocolate. Perfect for Halloween parties, they are quick, easy, and crowd-pleasing.

Ingredients

Scale
  • 1 ½ cups (190g) all-purpose flour, sifted
  • ¾ cup (75g) unsweetened dark cocoa powder
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 ¼ cups (250g) granulated sugar
  • 2 large eggs, room temperature
  • 1 cup (240ml) buttermilk (or 1 cup milk + 1 tablespoon lemon juice)
  • ½ cup (120ml) vegetable oil
  • 1 teaspoon vanilla extract
  • 1 teaspoon white vinegar
  • 1 tablespoon black gel food coloring (optional)
  • 1 cup (227g) unsalted butter, softened
  • 4 cups (480g) powdered sugar, sifted
  • 23 tablespoons milk or heavy cream
  • 1 teaspoon vanilla extract
  • 2 ounces (60g) dark chocolate or chocolate chips, melted

Instructions

  1. Preheat oven to 350°F (175°C). Line a 12-cup muffin tin with cupcake liners or grease the cups lightly.
  2. In a large bowl, sift together flour, cocoa powder, baking soda, and salt.
  3. In a separate bowl, whisk together sugar, eggs, buttermilk, vegetable oil, vanilla extract, white vinegar, and black gel food coloring if using.
  4. Slowly add dry ingredients to wet ingredients in batches, folding gently with a spatula until just combined. Batter should be smooth and thick but pourable.
  5. Fill cupcake liners about ⅔ full with batter using a cookie scoop or spoon.
  6. Bake for 18-22 minutes, checking at 18 minutes with a toothpick. Cupcakes are done when toothpick comes out clean or with a few moist crumbs.
  7. Let cupcakes cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
  8. To make frosting, beat softened butter on medium speed until creamy (about 2 minutes). Gradually add powdered sugar, alternating with milk or cream and vanilla extract, beating until light and fluffy. Adjust consistency as needed.
  9. Frost cupcakes with a spatula or piping bag, creating smooth or gently peaked swirls.
  10. Melt dark chocolate gently. Pour into a small piping or zip-top bag and snip a tiny corner. Pipe concentric circles starting from the center of each cupcake, then drag a toothpick from center outward through the circles to form a spiderweb pattern.
  11. Chill cupcakes briefly before piping spiderweb if kitchen is warm to prevent chocolate from melting.

Notes

Use room temperature eggs and butter for best mixing results. Do not overmix batter to avoid dense cupcakes. Use an oven thermometer to ensure accurate baking temperature. Practice spiderweb piping on parchment paper first if needed. Chill cupcakes before piping spiderweb if kitchen is warm to prevent chocolate melting.

Nutrition

Keywords: black velvet cupcakes, Halloween cupcakes, spiderweb frosting, easy Halloween dessert, chocolate cupcakes, festive baking