What I love most about Halloween is baking fun and magical desserts—and these Spider Web Brownies are the perfect example. Rich, fudgy, and chocolatey to the core, they’re a spooky twist on a classic treat that everyone loves. What I adore most about this recipe is how simple it is to create such an eye-catching effect with melted marshmallows . The result? A pan of brownies that looks like it came straight out of a haunted bakery, yet requires very little effort. Whether you’re hosting a Halloween party, sending something festive to a school event, or just want a fun activity to do with the kids, these brownies check all the boxes.
The best part is that they taste just as good as they look—gooey in the center, slightly chewy on the edges, and topped with a silky web design that makes them almost too pretty to eat. Almost. You can even get creative and top them with little candy spiders for an extra frightful finish. Trust me, when you set these Spider Web Brownies out on your Halloween table, they won’t last long. This is the kind of recipe that proves festive baking doesn’t have to be complicated—it just has to be deliciously fun.
Why You’ll Love This Recipe
- Spooky & Festive: The spider web design instantly makes these brownies Halloween-ready without needing complicated decorating skills.
- Rich & Fudgy: They’re everything you want in a brownie—gooey, chocolatey, and full of that irresistible homemade flavor.
- Kid-Friendly Fun: Little hands will love helping swirl the web pattern, making this a perfect family-friendly activity.
- Crowd-Pleaser: Whether it’s a party, potluck, or school event, these brownies are guaranteed to disappear fast.
Ingredients
- Brownie Mix (18oz)
- Mini Marshmallows— 1 cup
- Butter— 3 Tablespoons
What You’ll Need
- 8×8 Brownie Pan
- Mixing Bowls
- Sauce Pan
How To Make Spider Web Brownies
- First Preheat oven to 350F then prepare the brownie mix following the instructions on the package.
- Once the brownies have cooled, melt marshmallows and butter in a saucepan on low heat or in a microwave.
- Transfer the marshmallow mixture to a large mixing bowl. Let it cool slightly then use your fingers to grab about a tablespoon and stretch thin over brownies. Repeat until the brownies look like they’re covered in spider webs.
- Slice and scare your friends!
Let us know what you thought of these spooky Halloween Spider Web Brownies. Check out some of other dessert recipes and feel free to browse our digital baking magazines.