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Flavorful Spider Web Brownies Recipe Perfect for Easy Halloween Treats

spider web brownies - featured image

These flavorful spider web brownies are a festive and easy-to-make Halloween treat featuring a fudgy chocolate base and a creamy white chocolate spider web design. Perfect for parties and last-minute cravings.

Ingredients

Scale
  • 1 cup (227g) unsalted butter, melted
  • 2 cups (400g) granulated sugar
  • 4 large eggs, room temperature
  • 1 teaspoon pure vanilla extract
  • 1 cup (125g) all-purpose flour
  • 3/4 cup (75g) unsweetened cocoa powder
  • 1/2 teaspoon salt
  • 1/2 teaspoon baking powder
  • 1 cup (175g) white chocolate chips or chopped white chocolate
  • 1 tablespoon heavy cream or milk

Instructions

  1. Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan lightly or line it with parchment paper.
  2. In a large bowl, whisk together the melted butter and granulated sugar until combined and glossy, about 2 minutes.
  3. Add the eggs one at a time, beating well after each addition, then stir in the vanilla extract until the mixture is thick and creamy.
  4. In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder.
  5. Gradually fold the dry ingredients into the wet mixture using a rubber spatula with gentle folding motions until thick, fudgy, and glossy. Do not overmix.
  6. Pour the batter into the prepared pan and spread evenly with a spatula.
  7. Bake the brownies for 25-30 minutes. Check doneness by inserting a toothpick in the center; it should come out with a few moist crumbs but not wet batter.
  8. While the brownies bake, melt the white chocolate chips and heavy cream in a microwave-safe bowl in 20-second intervals, stirring until smooth. Alternatively, use a double boiler.
  9. Once the brownies are out and slightly cooled (about 10 minutes), transfer the melted white chocolate to a piping bag or zip-top bag.
  10. Pipe concentric circles starting from the center outward, then drag a toothpick from the center to the edge in straight lines to form the spider web design.
  11. Allow the white chocolate to set. You can speed this up by refrigerating the brownies for 15 minutes.
  12. Cut into squares using a sharp knife, wiping it clean between cuts to keep edges neat, and serve.

Notes

If white chocolate thickens while piping, warm gently again. Do not overbake brownies to keep them moist. Practice piping spider web design on parchment paper first. For gluten-free, substitute flour with almond flour or gluten-free blend; for dairy-free, use vegan white chocolate and coconut cream.

Nutrition

Keywords: Halloween brownies, spider web brownies, chocolate brownies, easy Halloween treats, festive brownies, white chocolate spider web, fudgy brownies