Spooky Spiderweb Brownies

Topped with melted marshmallow "spiderwebs," these chewy, gooey brownies make a perfect Halloween dessert.

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Image Credit: Bites by Bianca

This brownie recipe is an absolute staple in my book. It's simple, chocolatey, gooey, chewy, fudgy, and pretty much everything I could ever want in a brownie. Plus, if you want to make them for the spooky season, it's really, really easy!

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Once the brownies are baked and have mostly cooled, you make the spiderweb design with melted marshmallows. You can go for a classic spiderweb pattern or make it more freeform, as I've done here.

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So, if you're ready to make some spooky brownies, keep on reading!

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Quick Recipe Overview

SERVINGS‌: 9 brownies

PREP TIME‌: 10 minutes

BAKE TIME‌: 40–50 minutes

COOLING TIME‌: 45 minutes

DECORATING TIME‌: 10 minutes

TOTAL TIME‌: 1 hour and 45 minutes–1 hour 55 minutes

Things You'll Need

  • 1/2 cup unsalted butter, melted

  • 1 cup granulated sugar

  • 1/3 cup cocoa powder

  • 1 Tbsp. vanilla

  • 2 eggs

  • 1/2 cup all-purpose flour

  • 3/4 tsp. salt

  • 1 cup chocolate chips

  • 1 cup mini marshmallows

1. Mix the melted butter, sugar, and cocoa powder

Preheat the oven to 350°F. Spray and line an 8 by 8-inch baking pan with parchment paper.

In a large mixing bowl, whisk together the melted butter, granulated sugar, and cocoa powder until combined.

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Image Credit: Bites by Bianca

2. Whisk in the eggs and vanilla

Whisk in one egg and the vanilla until uniform. Whisk in the second egg until smooth.

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Image Credit: Bites by Bianca

3. Fold in the dry ingredients

Add the flour, salt, and chocolate chips. Fold until no dry spots remain.

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Image Credit: Bites by Bianca

4. Bake the brownies

Transfer the brownie batter to the lined baking pan. Use an offset spatula to spread it evenly.

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Bake at 350°F for 40 to 50 minutes. To test if it is done, stick a toothpick in the center. If it comes out mostly clean with some crumbs, it is finished.

Remove the pan from the oven and let it cool on a wire rack for 45 minutes.

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Image Credit: Bites by Bianca

5. Melt the marshmallows

Add the marshmallows to a microwave-safe bowl. Microwave for 15 to 20 seconds, just until they puff up.

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Image Credit: Bites by Bianca

6. Add spiderwebs

Dip two forks into the marshmallows. Use the forks to add "spiderwebs" on top of the brownies. Reheat the marshmallows as needed.

Image Credit: Bites by Bianca

7. Slice and serve

Slice the brownies into 9 pieces and enjoy!

Tip

Store the brownies in an airtight container at room temperature for up to 5 days.

Image Credit: Bites by Bianca

Looking for more spooky treats? Try baking our chocolate monster mash cookies!

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