Halloween Brownies

03 hours

Tessa Arias

Author:

Tessa Arias

Modified: October 5, 2026

These Halloween Brownies are rich, chewy, and topped with an easy white chocolate cobweb for the cutest spooky treat. They’re quick and simple to make, and the decorating is so easy that kids can help, too!

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Tessa’s Recipe Rundown

Taste: Rich, chocolatey brownies with a subtly sweet white chocolate topping.

Texture: Chewy and fudgy with bites of chocolate chips and a slightly crisp chocolate cobweb.

Ease: So easy! The cobweb decoration is simple enough to make with kids.

Why you’ll love this recipe: An easy, festive chocolate Halloween dessert that’s fun to make and even more fun to eat.

If you’re looking for the perfect blend of spooky and delicious, these Halloween Brownies are it. And the best part? They’re incredibly easy to make!

several brownies on a white background with a plastic spider in amongst for added spookiness.

Creating fall recipes, especially for Halloween, is always a highlight for me. You guys went crazy for my Halloween Cookies, super spooky Monster Cookies, and my show-stopping Halloween Charcuterie Board. 

In fact, the brownies photographed in that charcuterie were so popular that I created this dedicated post with all the tips and tricks you’ll need to make the perfect cobweb brownies. 

my halloween charcuterie board, featuring these halloween brownies.

Recipe Ingredients & Equipment

Chewy Brownies: These Halloween Brownies start with my viral Best Ever Chewy Brownies and get topped with an easy white chocolate cobweb. This one-bowl brownie recipe is ready in less than an hour, with simple ingredients you might already have in your pantry.

White Chocolate:

  • For best flavor: Use white baking chocolate. Keep in mind that white chocolate might not fully harden at room temperature, so the brownies may need to be refrigerated if you want the cobwebs to stay firm.
  • For easy transport: Use white melting wafers instead. The flavor isn’t quite as good as white baking chocolate, but it works well if you’re serving these at a party or want to stack the brownies without damaging the cobwebs.
  • I don’t recommend white chocolate chips here, since they melt more slowly and are more likely to burn.

8×8-Inch Metal Baking Pan: Don’t use a glass pan to bake brownies – they won’t bake as evenly, and the edges might dry out before the center has baked through. See my side-by-side comparison of baking brownies in Glass vs Metal Baking Pans here.

Decorating Halloween Brownies: How to Pipe Spider Webs 

  1. Melt the white chocolate or wafers and transfer to a disposable piping bag or zip-top bag with the corner snipped off.
  2. Pipe four lines across one brownie slice to create a snowflake pattern, stopping just before the edges.
  3. Pipe curved lines between each spoke to create the web. Repeat with a few more rows of curves (about 3-4), then finish with a small circle in the center.
  4. Let the chocolate set before serving.

Don’t worry about making perfect spiderwebs! The imperfections make each brownie a little more fun and unique.

gif showing how to pipe spiderwebs.

How to Perfectly Slice Brownies

Check out my How to Cut Brownies Cleanly in 5 Steps article for all my tips on slicing brownies perfectly. 

messy brownie slices vs clean brownie slices

Storage & Make ahead

Storage: Store in an airtight container for up to 3 days at room temperature or up to 5 days in the fridge. They’re even fudgier when chilled! Please note that once cut, the edges of the brownies will dry out quickly if not stored in an airtight container.

Freezer, Not Decorated: Wrap the whole slab or slices in plastic wrap and place in a freezer bag or airtight container for up to 1 month. Thaw overnight in the fridge or for a couple of hours at room temperature before decorating, setting, and serving.

all the slices on a white background with a plastic spider and a paper bat nearby.
a slice of brownie with a white chocolate spider web piped on top, for the ultimate halloween brownie.
Yields: 9 large or 16 small brownies

How To Make

Halloween Brownies

Yields: 9 large or 16 small brownies
Prep Time 30 minutes
Cook Time 30 minutes
Cooling Time 2 hours
Total Time 3 hours
Review Recipe Print Recipe
Prep Time 30 minutes
Cook Time 30 minutes
Cooling Time 2 hours
Total Time 3 hours
Review Recipe Print Recipe
These Halloween Brownies are rich, chewy, and topped with an easy white chocolate cobweb for the cutest spooky treat. They’re quick and simple to make, and the decorating is so easy that kids can help, too!

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Ingredients

Instructions

Make the brownies:

  • Make a batch of my Best Chewy Brownies.
  • Allow to cool completely. If time allows, chill the brownies until firm. Once chilled, evenly slice the brownies into 9 large slices or 16 smaller slices.

Melt the candy melts:

  • In a microwave-safe bowl, melt white melting wafers or white chocolate in the microwave at 50% power, stirring every 30 seconds, until melted and completely smooth. A double-boiler works just fine for this, if preferred.
  • Transfer the melted white chocolate/melting wafers to a disposable piping bag or zip top bag fitted with a small plain piping tip such as Wilton #3, or simply cut a very small hole at the bottom of the bag.

Decorate the brownies:

  • One brownie slice at a time, pipe crisscrossing lines on each brownie to create a snowflake pattern, then connect the lines with curved arches to form a spiderweb. Repeat for all brownies.
  • Once the spiderwebs have dried fully, place inside an airtight container with pieces of parchment paper or wax paper between stacked layers. Halloween Brownies can be stored at room temperature for up to 3 days, or up to 5 days refrigerated.

Notes

*White baking chocolate will taste the best, but it may not harden unless stored in the fridge. I recommend using Ghirardelli White Melting Wafers, which taste much better than most candy melts and will allow you to store the Halloween Brownies at room temperature, even stacked, without ruining your piping. 
Please note that if using candy melts, you’ll need to move quite quickly while piping, as candy melts seize up and set very quickly, especially if your kitchen is cold. Try melting the candy melts in batches to prevent them from solidifying too quickly in your piping bag. 
I don’t recommend using white chocolate chips for piping. More on this in the Sprinkle of Science box above the recipe. 
Need to serve a crowd? Simply double all ingredients in my Chewy Brownies recipe and bake in a 9×13-inch metal baking pan, adding a few minutes to the bake time. You’ll need 2/3 cup (112 grams) candy melts or white chocolate for your spiderwebs.

Photos by Joanie Simon.

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