These brownies are deeply chocolatey with a soft, fudgy center and slightly crisp edges. The cobweb decoration adds visual flair without requiring advanced decorating skills.
They’re ideal for holiday celebrations, especially Halloween, and can be customized with different toppings or flavors.
Best of all, the design is created with simple ingredients you likely already have in your kitchen.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
unsalted butter semi-sweet chocolate granulated sugar brown sugar large eggs vanilla extract all-purpose flour unsweetened cocoa powder salt white chocolate or vanilla icing for decoration
Directions
Preheat your oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper, leaving an overhang for easy removal.
In a heatproof bowl, melt the butter and semi-sweet chocolate together until smooth. Allow the mixture to cool slightly.
Whisk in the granulated sugar and brown sugar until combined. Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
In a separate bowl, whisk together the flour, cocoa powder, and salt. Gradually fold the dry ingredients into the chocolate mixture until just combined.
Pour the batter into the prepared pan and spread it evenly.
Bake for 30 to 35 minutes, or until the center is set but still slightly fudgy. Allow the brownies to cool completely in the pan.
Melt the white chocolate or prepare the vanilla icing. Transfer it to a piping bag or small zip-top bag with the tip snipped off. Pipe concentric circles over the cooled brownies. Using a toothpick, drag lines from the center outward to create a cobweb effect.
Let the decoration set before slicing into squares and serving.
Servings and timing
Servings: 12 to 16 brownies
Preparation time: 20 minutes Baking time: 30 to 35 minutes Cooling and decorating time: 45 minutes Total time: About 1 hour and 45 minutes
Variations
Add chocolate chips to the batter for extra richness.
Stir in chopped walnuts or pecans for added texture.
Use dark chocolate instead of semi-sweet for a more intense flavor.
Flavor the batter with a hint of espresso powder to enhance the chocolate taste.
Top each brownie square with a small candy spider for an extra festive touch.
Storage/Reheating
Store brownies in an airtight container at room temperature for up to 3 days.
For longer storage, refrigerate for up to 5 days. Bring to room temperature before serving for the best texture.
To freeze, wrap individual brownies tightly and store in a freezer-safe container for up to 2 months. Thaw at room temperature before enjoying.
If you prefer warm brownies, heat individual squares in the microwave for 10 to 15 seconds.
FAQs
Can I use a boxed brownie mix?
Yes, you can use your favorite boxed mix and simply add the cobweb decoration after baking and cooling.
How do I keep the brownies fudgy?
Avoid overbaking. Remove them from the oven when the center is set but still slightly soft.
Can I use milk chocolate instead?
Yes, but the brownies will be sweeter and less intense in flavor.
What’s the easiest way to create the cobweb design?
Pipe concentric circles and drag a toothpick from the center outward at even intervals.
Do I have to use white chocolate?
No, you can use vanilla icing or even colored icing for a different look.
Can I double this recipe?
Yes, use a 9×13-inch pan and adjust the baking time slightly.
How do I cut clean brownie squares?
Use a sharp knife and wipe it clean between cuts for neat slices.
Can I make these brownies ahead of time?
Yes, they can be baked and decorated a day in advance.
Why did my decoration melt?
Make sure the brownies are completely cooled before piping the design.
Are these brownies suitable for parties?
Absolutely. Their festive appearance makes them perfect for themed celebrations.
Conclusion
Cobweb Brownies are a deliciously rich dessert with a playful decorative twist. With their fudgy texture and striking spiderweb design, they’re perfect for festive occasions or whenever you want to impress with minimal effort. Easy to prepare and fun to decorate, these brownies are sure to become a seasonal favorite.
These Cobweb Brownies are rich, fudgy chocolate brownies topped with a striking spiderweb design made from white chocolate or vanilla icing. Perfect for Halloween parties and festive gatherings, cobweb brownies combine deep chocolate flavor with an easy decorative technique that looks impressive but requires minimal effort.
Author:Catherine
Prep Time:20 minutes
Cook Time:35 minutes
Total Time:1 hour 40 minutes
Yield:12–16 brownies
Method:Baking
Cuisine:American
Diet:Vegetarian
Ingredients
½ cup unsalted butter
6 oz semi-sweet chocolate
¾ cup granulated sugar
¼ cup brown sugar
2 large eggs
1 teaspoon vanilla extract
¾ cup all-purpose flour
¼ cup unsweetened cocoa powder
½ teaspoon salt
½ cup white chocolate (melted) or vanilla icing (for decoration)
Instructions
Preheat Oven: Preheat oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper, leaving overhang for easy removal.
Melt Chocolate & Butter: In a heatproof bowl, melt butter and semi-sweet chocolate together until smooth. Let cool slightly.
Mix Wet Ingredients: Whisk in granulated sugar and brown sugar until combined. Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
Combine Dry Ingredients: In a separate bowl, whisk together flour, cocoa powder, and salt.
Combine Batter: Gradually fold dry ingredients into the chocolate mixture until just combined. Do not overmix.
Bake: Pour batter into prepared pan and spread evenly. Bake for 30–35 minutes, until the center is set but still slightly fudgy. Cool completely in the pan.
Create Cobweb Design: Melt white chocolate or prepare vanilla icing. Pipe concentric circles over cooled brownies. Using a toothpick, drag lines from the center outward to form a spiderweb pattern.
Set & Slice: Allow decoration to set before cutting into 12–16 squares.
Notes
Do not overbake to maintain a fudgy texture.Ensure brownies are fully cooled before decorating to prevent melting.Add espresso powder to intensify chocolate flavor.Candy spiders can be added for extra Halloween flair.Wipe your knife clean between cuts for neat slices.
