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Perfect Spiderweb Halloween Cookie Cake with Easy Chocolate Ganache

spiderweb halloween cookie cake - featured image

A thick, chewy cookie cake topped with glossy chocolate ganache and an easy spiderweb design. This impressive Halloween dessert looks like it came from a bakery but comes together with minimal stress and simple ingredients.

Ingredients

Scale
  • 2 ¼ cups (280g) all-purpose flour
  • 1 teaspoon baking soda
  • ½ teaspoon fine sea salt
  • 1 cup (226g) unsalted butter, softened
  • ¾ cup (150g) granulated sugar
  • ¾ cup (160g) packed light brown sugar
  • 2 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup (170g) semi-sweet chocolate chips
  • 1 cup (240ml) heavy cream
  • 8 oz (226g) semi-sweet or dark chocolate, finely chopped (60% cacao recommended)
  • 1 tablespoon unsalted butter, softened
  • ¼ cup (60ml) white chocolate, melted
  • Optional: candy spiders or edible eyes for decoration

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9-inch round cake pan and line the bottom with parchment paper, letting it extend up the sides.
  2. In a large mixing bowl, beat softened butter, granulated sugar, and brown sugar on medium speed until light and fluffy, about 2-3 minutes. Scrape down the sides halfway through.
  3. Add eggs one at a time, beating well after each addition. Mix in vanilla extract. The mixture may look slightly curdled; continue mixing until smooth.
  4. In a separate bowl, whisk together flour, baking soda, and salt. Gradually add dry ingredients to wet mixture, mixing on low speed just until combined. Do not overmix.
  5. Fold in chocolate chips with a rubber spatula until evenly distributed. Dough will be thick and slightly sticky.
  6. Transfer dough to prepared pan. Using slightly damp fingers, press dough evenly into the pan, making the surface as level as possible. Chill for 10 minutes if too sticky.
  7. Bake for 22-28 minutes, until edges are golden brown and center looks set but still soft. A toothpick inserted in center should come out with a few moist crumbs. Cool in pan for 10 minutes, then lift out using parchment and transfer to a cooling rack. Cool completely.
  8. Place finely chopped chocolate in a heatproof bowl. Heat heavy cream in a small saucepan over medium heat until it just begins to simmer (small bubbles around edges, not boiling). Pour hot cream over chocolate and let sit undisturbed for 2 minutes. Stir gently in a circular motion from center outward until smooth and glossy. Stir in softened butter. Let ganache cool for 10-15 minutes until thickened but still pourable.
  9. Place cooled cookie cake on a serving plate. Pour ganache over center and spread evenly to edges with an offset spatula or spoon. Let some drip over sides. Allow ganache to set for about 15 minutes at room temperature.
  10. Melt white chocolate in a small bowl in 20-second intervals in the microwave, stirring between each. Transfer to a small piping bag or zip-top bag with a tiny corner snipped off. Pipe a spiral starting from the center of the cookie cake, working outward with about 1 inch between each ring.
  11. Using a toothpick or skewer, drag lines from the center outward through the white chocolate rings to create the web effect. Wipe toothpick clean between each drag line. If adding candy spiders or edible eyes, place them on ganache while still slightly soft.

Notes

Don’t overbake—the cookie will look slightly underdone in the center when pulled out but continues to bake from residual heat. Room temperature ingredients matter for proper creaming. Pour ganache when warm but not hot (about 10 minutes cooling). Wipe toothpick clean between each drag line for crisp spiderweb. Chill dough if kitchen is warm. Cookie cake can be baked 2 days ahead; add ganache and decorate day of serving. Freeze baked cookie cake (without ganache) for up to 2 months.

Nutrition

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