Chocolate Spider Layer Cake Recipe

A soft, airy chocolate cake layered with whipped ganache, wrapped in a gooey marshmallow web, and topped with an edible spider — the ultimate Halloween showstopper.

⏱ 115 min 🔨 Prep 20min 🔥 Cook 35min 📊 Hard 🍽 10 servings 👁 12
Chocolate Spider Layer Cake Recipe

Ingredients

10 servings

Instructions

  1. Heat the cream to a boil.
  2. Pour over the chocolate in three parts, stirring each time until smooth.
  3. Reserve ¼ cup of ganache for shaping the spider body later.
  4. Cover the remaining ganache with plastic wrap (touching the surface) and refrigerate for at least 2 hours, until chilled.
  5. Once chilled, whip using a stand mixer until light, fluffy, and firm.
  6. Preheat to 350°F (180°C) standard or 320°F (160°C) fan/convection. Lightly grease and line two 7-inch (18 cm) round cake pans with parchment paper.
  7. In a large bowl, whisk together flour, cocoa powder, baking powder, baking soda, salt, and sugar until well combined.
  8. Add the eggs, milk, oil, and vanilla, whisking until the batter is smooth and lump-free.
  9. Slowly pour in the boiling water, whisking until the batter is silky and slightly thin — this makes it extra moist.
  10. Divide batter evenly between pans and bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.
  11. Let cakes cool in the pans for 10 minutes, then remove and transfer to a wire rack to cool completely before frosting.
  12. Optional: pour ¼ cup of batter into a small greased mold for the spider body; bake for 40 minutes.
  13. Once baked, run a knife around the edges and let the cake cool completely before removing from the pan.
  14. Slice: the large cake horizontally into 2 layers and trim the top if domed.
  15. Spread whipped ganache between the layers and over the entire cake. Chill to set the ganache.
  16. Microwave marshmallows for 30 seconds until stretchy.
  17. Pull strands apart with your fingers or two spoons and wrap them around the cake to form a web.
  18. Crumble the small baked cake and mix with the reserved ganache.
  19. Shape into a body and head, then roll in chocolate sprinkles.
  20. Freeze briefly (10-15 minutes), then place on top of the cake.
  21. Insert 8 Pocky sticks for legs in an upside down V shape (4 per side).
  22. Add red and black fondant eyes.
  23. Keep refrigerated until ready to serve
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Nutrition per serving

686kcal

💰 Cost Estimate

Total Ingredients
$6153.00
Per Serving
$615.00/serving
🏠 Savings
~$12306.00 vs buying!
📋 Price Breakdown (88% ingredients detected)
IngredientAmountSubtotal
heavy cream 2 cups $211.00
dark chocolate 13 oz $1526.00
all-purpose flour 1.75 cups $14.00
unsweetened cocoa powder 0.75 cup $2089.00
baking powder 1.5 tsp $10.00
baking soda 1.5 tsp $3.00
salt 1 tsp $1.00
granulated sugar 2 cup $78.00
eggs 2 large $65.00
milk 1 cup $25.00
neutral oil 0.5 cup $33.00
pure vanilla extract 2 tsp $102.00
boiling water 1 cup -
chocolate pocky sticks 16 $1878.00
white marshmallows 6 large $118.00
Red and black fondant - -
Chocolate sprinkles - -

*Estimated market prices, may vary by region

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🍳

Chocolate Spider Layer Cake Recipe

Ingredients:
  • 2 cups heavy cream
  • 13 oz dark chocolate (chopped)
  • 1¾ cups all-purpose flour
  • ¾ cup unsweetened cocoa powder
  • 1½ tsp baking powder
  • 1½ tsp baking soda
  • 1 tsp salt
  • 2 cup granulated sugar
  • 2 large eggs
  • 1 cup milk
  • ½ cup neutral oil (vegetable oil)
  • 2 tsp pure vanilla extract
  • 1 cup boiling water
  • 16 chocolate pocky sticks
  • 6 large white marshmallows
  • Red and black fondant (for eyes)
  • Chocolate sprinkles (for spider hair)

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