Spiderweb Chocolate Cake is a spook-tacular dessert that combines rich, moist chocolate cake with a creative, Halloween-inspired decoration. This cake is not only visually striking but also delicious, making it a perfect centerpiece for Halloween parties, family gatherings, or themed events. With its indulgent chocolate flavor and dramatic spiderweb design, it’s sure to impress your guests while satisfying their sweet tooth.
The base of this cake is a decadent, moist chocolate cake made with simple ingredients that deliver a rich and tender crumb. Whether you bake a layer cake or a single round, the cake itself is the perfect canvas for your spooky spiderweb design. The dark chocolate cake pairs wonderfully with a smooth, velvety chocolate frosting that adds both flavor and a bit of luxury to each bite.
The real fun comes with the spiderweb decoration. After the cake is frosted, a contrasting white icing is piped into a simple spiderweb pattern across the top of the cake. Using a toothpick or knife, the web is then carefully pulled from the center outwards, creating the iconic spiderweb look. For added flair, a small plastic or candy spider can be placed in the center or crawling along the edges of the web, adding that final creepy touch.
What makes Spiderweb Chocolate Cake so appealing is its combination of textures and flavors. The richness of the chocolate cake and frosting is balanced by the delicate sweetness of the spiderweb icing. It’s indulgent without being overwhelmingly sweet, making it a great choice for those who love chocolate but don’t want a cake that’s too heavy.
This cake is an easy and fun project for Halloween baking. Kids will love helping with the spiderweb decoration, and it’s a simple way to make a dessert look impressive without requiring advanced baking skills. Whether you’re serving it at a party, enjoying it with family, or taking it to a Halloween potluck, Spiderweb Chocolate Cake is a dessert that combines spooky fun with a deliciously decadent treat.

Ingredients
- 1 and 3/4 cups all-purpose flour
- 3/4 cup unsweetened cocoa powder
- 2 cups granulated sugar
- 1 and 1/2 teaspoons baking powder
- 1 and 1/2 teaspoons baking soda
- 1 teaspoon salt
- 2 large eggs at room temperature
- 1 cup whole milk at room temperature
- 1/2 cup vegetable oil
- 2 teaspoons vanilla extract
- 1 cup boiling water
- 1/4 cup white chocolate or icing for spiderweb decoration
Instructions
- Preheat the oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
- In a large bowl, combine flour, cocoa powder, sugar, baking powder, baking soda, and salt. Whisk until evenly mixed.
- Add eggs, milk, oil, and vanilla to the dry ingredients. Beat on medium speed for 2 minutes.
- Stir in boiling water until the batter is smooth. The batter will be thin.
- Pour the batter evenly into the prepared cake pans.
- Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Allow cakes to cool in pans for 10 minutes, then remove from pans and transfer to a wire rack to cool completely.
- Once cooled, place one cake layer on a serving plate. Spread a layer of icing on top. Add the second layer of cake.
- Melt the white chocolate or prepare icing and place it in a piping bag. Pipe a spiral design on top of the cake.
- Use a toothpick to drag lines from the center of the spiral outward to create a spiderweb pattern.
Spiderweb cake!!! I love Halloween and this recipe is perfect!
Yummy! My kids loved helping with the spiderweb part! 😊 Definitely a fun family activity.
That sounds like a blast! I love when kids get involved in cooking. What age are your kids?
Spiderwebs on cake?? So creative! But what if I don’t like white chocolate? Can I use something else?
I didn’t have boiling water, I used cold. It turned out kinda mushy. Wouldn’t recommend 😩
I don’t really get the whole spiderweb thing… are we eating cake or catching spiders?
Just okay. The cake was a bit too sweet for my taste… I prefer a more bitter chocolate flavor. Also, the frosting got kinda messy.
I totally get what you mean! I also prefer a richer chocolate taste. Maybe try adding some espresso powder next time? It really balances out the sweetness!
Y’all, this is the best recipe ever! So simple and looks fancy. My kids loved making the spiderwebs! 🎃
I’m glad you and your kids enjoyed it! The spiderwebs are such a fun touch! 🕷️🎂
This seems nice, but honestly, my kids hate chocolate. Do you think it works with vanilla instead?
Um, I don’t know about using boiling water. Seemed kinda weird. The cake turned out alright, but I was nervous.
Use a whisk? Can’t I just use a fork? 🤔
This cake recipe is AMAZING! I made it for Halloween and everyone loved the spiderweb design! Will make again.
Wow, that sounds so fun! I’m glad it was a hit for Halloween! Can you share a pic?
Spiderweb design? Sounds weird but interesting! Did it taste good too?
Highly overrated. The flavor was just okay, and it didn’t look like the picture. Should’ve just bought one.
Baked it and it came out so fluffy! I can’t believe I made this from scratch. Thanks for the easy instructions!
Wow, that’s amazing! I’m so glad it turned out fluffy for you. I can’t wait to try this recipe myself!
Quick question: can I use milk chocolate instead of white for the spiderweb? 🤔
This is just a chocolate cake with some icing, nothing special.
This cake is a total showstopper! The spiderweb design is so cute, and it tastes divine. My kids loved it!
I tried making this cake for my kids’ Halloween party, and it turned out awesome! Thank you for sharing this recipe! 🎃
I dunno, the batter was way too runny. I think it could use more flour. My cake ended up flat!
Why use boiling water? Isn’t that gonna ruin the eggs? I didn’t try this recipe, sounds silly…
Not good. Tasted burnt and it was super dense. Never making this again.
This cake is so delicious! The chocolate flavor is to die for. My family loved it, and it looked pretty too with that spiderweb decoration!
Perfect for spooky season! It was a hit at the party!
Was it really that good? I tried a different chocolate cake and it was just okay.
I’m so glad you and your guests loved it! The spiderweb decoration is such a fun touch.
I tried making this cake and it came out all messed up. The layers fell apart. I dunno what went wrong…
This cake is just chocolate overload! Too sweet for my taste. I prefer a simple vanilla.
Good but I guess I overbaked it. The texture wasn’t right… still tasted fine tho!
It’s just a chocolate cake… like we needed another one? Meh.
Hey, do you think I can substitute the white chocolate with dark chocolate? I only have dark chocolate at home.
Yeah, you can use dark chocolate! It will make the cake richer. Just keep in mind it’ll taste different than the white chocolate. Good luck!
Bakin it tonight! Hoping for good results. Wish me luck!
This cake is a masterpiece! The kids loved it at the Halloween party.
The spiderweb design was super fun to make! My kids loved it. 😊
Wow, this cake looks so cool! Can’t wait to try it for Halloween!
Just made this for Halloween, and it was a hit! Dark and spooky treat for the kids. 🎃
What is the purpose of the boiling water? Does it actually make a difference? I got a cake recipe that was similar, and it didn’t call for it.
Yummy!!!
I can’t wait to try this! Looks so good! 😍
This cake is like chocolate heaven!! 🍫 I didn’t do the spiderweb cause I’m not that good at decorating. Still awesome!
Too much sugar, I think! It tasted more like candy than cake.
I don’t think it’s too much sugar, it’s a dessert after all! Candy cakes are the best!
Honestly, you can just reduce the sugar next time. But I love my cake sweet! 😋
I had a hard time with the icing. It didn’t turn out like the picture. Super frustrating!
Delicious! I made it for my parents’ anniversary, and it was a hit. Will make it again for sure!
That’s awesome! Your parents must have loved it. Such a creative cake for an anniversary! 🎉
Love this recipe! It’s super easy and super YUMMY!! Just glazed it instead of the spiderweb, and it was awesome.
I’m glad you enjoyed it! Glazing sounds like a great idea, I’ll have to try that next time!
I followed the recipe exactly but my cake didn’t rise. What went wrong?
idk maybe u didn’t mix it enough or ur oven isn’t hot enough. try again it could be better next time!
Maybe your baking powder or soda is old? They can lose their power over time. Check the dates next time!
This cake is a hit at every party! Rich chocolate flavor and the spiderweb decoration is so cool! 5 stars!!
Why does it need boiling water? Seems weird to me. But maybe it’s a good trick? I dunno.
Love it. I made for Halloween and everyone was impressed. 10/10 would bake again.
Not sure about the spiderweb part… I just want cake. Can I skip that?
Cake was ok, but too many ingredients if ya ask me. Just give me a box mix any day.
The cake collapsed a bit. Not sure if I did something wrong. Templates are always deceiving.
It tastes good but was wayyyyy too sweet for my liking. Next time, I’ll reduce the sugar.
why would u use boiling water?? this sounds impossible, no way it works!
Boiling water is actually common in cake recipes! It helps dissolve the cocoa and makes the cake super moist. Give it a try!
Spiderwebs?! This is just a cake. But it looks cute! I might try it.
This looks kinda complicated. I’m not sure my baking skills are good enough for this. Anyone tried making it without boiling water?
Isn’t chocolate on chocolate too much? Lol. I like simple cakes, not these fancy ones.
So easy to make! I’m no baker, and even I nailed it. Thanks for this recipe!
I’m impressed! This does seem like an easy recipe. Can’t wait to try it myself!
Sounds good, but is it hard to make? I don’t bake much. I just want to impress my friends.
It’s actually not that hard! Just follow the steps and you’ll be fine. Your friends will be impressed for sure!
This cake is absolutely delicious! Easy to make and looks impressive too! My kids loved it! 🍰
Easy recipe but I messed up the spiderweb. Didn’t know white chocolate would melt so fast!
You melted the white chocolate too fast? It shouldn’t be that quick. You gotta be careful with the heat! Just try again, you’ll nail it! 😁
Don’t worry! The spiderweb can be tricky. I had the same problem at first, but practice makes perfect. 😄
I followed the instructions step by step but my cake looked nothing like the photo. Disappointed.
I had a hard time with the icing part. It didn’t turn out like the picture. Can someone explain how to make the spiderweb?
Yum! Yum! Best cake! 🥳
I tried this but was really confused by the boiling water part. It made my batter super runny. Maybe I did it wrong?
My kids loved decorating it! Super fun activity, and they ate it all up. Thanks for the recipe!
This cake was a hit at our Halloween party! So chocolatey and fun to make. Everyone loved the spiderweb design!
My grandma makes a similar cake but with peanut butter. I prefer that one.
Honestly, I don’t get all the fuss. It’s just a chocolate cake. My grandma’s cake is way better!
Chocolate cake is chocolate cake. Don’t know why people make such a big deal. My mom’s is just a mix and still better!
I get what you’re saying, but this cake looks amazing! It’s not just about taste, it’s about presentation too. 👏
This cake is absolutely amazing! So rich and chocolaty, everyone loved it at the party!
I made this for Halloween, and it was a hit! Everyone was impressed with my decorating skills! Definitely making it again!
Hmmm, sounds good but I ain’t sure if my decorating skills are up to par. What if I mess it up?
That sounds awesome! I love when people love what I make. What kind of decorations did you use besides the spiderweb?
Spiderweb cake? Creepy but cool! I made it for Halloween and everyone was impressed. I’m not even a baker! 😄
This cake is absolutely delicious! I made it for my son’s birthday, and it was a hit. The chocolate flavor is rich and perfect!
Spiderweb decoration is a bit tricky. I ended up with a blob instead! But cake was good.
Too much sugar for my liking. I would suggest less sugar next time.
Less sugar? Nah, it’s a chocolate cake! It needs to be sweet! Can’t skimp on flavor, come on.
I totally agree! I used half the sugar last time and it was so much better. Sweetness can be a bit overkill.
The spiderweb thing is kinda cool! I added some gummy spiders for effect. So festive!
Lol I thought ‘spiderweb’ meant actual spider webs. I was ready to run! But this cake is delicious!
Haha that’s hilarious! I was scared too until I read the recipe! This cake looks so good! Can’t wait to try it!
Sooo gooood!
Honestly, I don’t see the hype. It’s just chocolate cake with some icing. I make better cakes with less fuss. 😒
I don’t understand the boiling water part. Why boiling? Seems weird to me.
The cake was okay but didn’t rise much. I probably messed up somewhere. I can’t bake so well. But the spiderweb is cute!
This cake is amazing! It was a big hit at my Halloween party. Thanks for sharing!
I don’t like chocolate that much but my husband loved it. So, 4 stars!
I get that! Chocolate’s not for everyone, but glad your husband enjoyed it! Maybe try a vanilla cake next time?
I thought the spiderweb looked cool, but honestly, the cake was too sweet for my taste. Next time, I might cut down the sugar a bit.
Is 1 cup of boiling water really necessary? Seems like a lot…
5 stars! The best chocolate cake ever. So rich and moist. You gotta try this!
I tried making this but my cake didn’t rise properly… I think my baking powder was old. Looks good though!
Yummy!!! 😋
Yum! Made it for Halloween and everyone loved it! Pretty easy to follow the recipe. Thanks for sharing!
What kind of odd combination is this? Chocolate cake with a spiderweb on it? I don’t get it. But to each their own, I guess.
Wow this is so good! Perfect balance of chocolaty and moist! My new favorite recipe.
I tried this recipe and it was a disaster! The cake collapsed and was not moist at all. 😩