These Dirt Cup Brownies are a Halloween version of the classic dirt cup dessert, starting with thick, fudgy chocolate chip brownies and a layer of creamy chocolate fudge frosting. Crushed Oreos create the “dirt” on top, then gummy worms, candy corn pumpkins and spooky Halloween sprinkles turn them into the easiest creepy-cute brownies.
These are exactly the kind of Halloween dessert I love because they look like you did a lot more work than you actually did. There’s no complicated decorating or piping involved and once the brownies are frosted, you basically get to cover them in Oreo crumbs and whatever Halloween candy you can find.
The brownies themselves are worth making even without all of the decorations. They’re rich and chocolatey with that dense, fudgy center I want from a brownie, plus plenty of chocolate chips throughout.
What Are Dirt Cup Brownies?
Think of these as a mashup between fudgy brownies and classic dirt cups. Last year I did Dirt Cup Cookies and they were such a hit I figured they’d be so good as a brownie and wow… they might be my new favorite way to enjoy a dirt cup 😍
Instead of chocolate pudding, the base is a thick chocolate brownie covered in chocolate fudge frosting. Oreos are pulsed in a food processor until they look like dirt and sprinkled generously over the frosting.
Then comes the fun part: gummy worms, candy corn pumpkins and Halloween sprinkles.
You can use exactly what I used or completely change the decorations depending on what you can find. Bones, tombstones, eyeballs, spiders, pumpkins and other Halloween candies all work here.
The Secret to Really Fudgy Brownies
For these, I wanted a brownie that was decidedly fudgy instead of cakey. Using melted butter gives the brownies richness, while a combination of granulated and brown sugar keeps the centers dense and moist. Cocoa powder provides plenty of chocolate flavor without adding too much structure, and we’re keeping the flour relatively low.
The other important part is not overbaking them. When you pull the brownies from the oven, a toothpick inserted near the center shouldn’t necessarily come out perfectly clean. You’re looking for moist fudgy crumbs, not wet batter. If you wait until the toothpick is completely clean, you’ve probably gone a little farther than you need to.
They’ll continue to set as they cool.
Don’t Skip the Chocolate Chips
I added semisweet chocolate chips directly to the brownie batter, and I definitely wouldn’t leave them out. They create little pockets of melted chocolate throughout the brownies and make the finished texture even fudgier. You could substitute chopped semisweet or dark chocolate if that’s what you have, but regular semisweet chocolate chips make these incredibly easy.
Chocolate Fudge Frosting
Once the brownies are completely cool, they’re covered with a thick layer of chocolate fudge frosting. The frosting serves two purposes here. Obviously, more chocolate is never a bad thing, but it also gives the Oreo crumbs something to stick to.
I wouldn’t make the frosting layer overwhelmingly thick. There’s already a lot happening between the rich brownie, chocolate chips, Oreos and candy. You want enough frosting to get a creamy chocolate layer in every bite without overpowering the brownie underneath.
How to Make Oreo Dirt
This is probably the easiest part. Add whole Oreos, filling and all, to a food processor and pulse until they’re finely crushed. You don’t need to remove the cream filling.
I like the crumbs pretty fine because they actually look like dirt when they’re scattered over the dark chocolate frosting. A few slightly larger pieces mixed in are completely fine too.
Generously sprinkle the Oreo crumbs over the freshly frosted brownies, lightly pressing them into the frosting if necessary.
Decorating Your Dirt Cup Brownies
This is where you can really have fun with them. For the brownies pictured, I used gummy worms, candy corn pumpkins and Halloween sprinkles with little bones and tombstones. But there really aren’t any rules here. Walk through the Halloween section and use whatever looks good.
Candy eyeballs, gummy worms, chocolate pumpkins, tombstone candies, bones, spiders, Halloween sprinkles or other spooky candy would all be cute.
I would just avoid covering every inch with candy. Leaving plenty of Oreo dirt visible is what makes these immediately read as dirt cup brownies.
Recipe Tips
Use a metal 8×8-inch pan. That’s what I used for the brownies pictured and what this recipe is developed for. Metal conducts heat differently than glass, so bake time can vary if you substitute another type of pan. This is the pan I used!
Line your pan with parchment paper. Leave a little overhang on the sides so you can lift the cooled brownies out of the pan before frosting and slicing.
Don’t overmix after adding the flour. Stir just until you no longer see streaks of dry ingredients. Overmixing encourages gluten development and works against that dense, fudgy texture.
Don’t overbake them. This is the big one. Moist crumbs on your toothpick are good. Wet batter needs more time.
Let them cool completely before frosting. Chocolate frosting + warm brownies = a mess. Give them plenty of time to cool before decorating. I like to let my brownies cool at room temp for 20 minutes and then pop them in the fridge to cool completely before frosting.
Use a food processor for the Oreos. You can crush them by hand, but the food processor gives you the fine, dirt-like texture you see in the photos.
Add the decorations last. Frost, add the Oreo dirt and then arrange your gummy worms and Halloween candy on top.
How to Get Clean Brownie Slices
If you want those nice clean squares for photos or serving, let everything set before slicing. Use a large, sharp knife and wipe the blade clean between every cut. If the frosting is particularly soft, you can also refrigerate the finished brownies briefly before slicing.
For these, though, I don’t think they need to look too perfect. A little messy Oreo dirt and a gummy worm hanging over the side are kind of the whole point.
How to Store Dirt Cup Brownies
Store the brownies in an airtight container at room temperature for about 3 days or in the refrigerator for up to 5 days. If you’re making them ahead for a Halloween party, I would bake and frost the brownies in advance but wait to add the gummy candy until closer to serving. Gummy candy can change texture when it sits against moist frosting for an extended period.
You can also freeze the undecorated brownies for up to 3 months. Let them thaw completely before adding the chocolate fudge frosting, Oreo dirt and Halloween decorations.
These Dirt Cup Brownies are rich, fudgy, chocolatey and just spooky enough for Halloween without turning into an all-day decorating project. The Oreo dirt and gummy worms make them instantly recognizable, and the extra Halloween candy makes every brownie a little different. They’re easy enough to make with kids but still look so fun piled onto a Halloween dessert table.
Dirt Cup Brownies
Ingredients
For the brownies:
- ½ cup salted butter melted, room temperature
- 1 cup granulated sugar
- ¼ cup light brown sugar packed down
- 2 eggs room temperature
- 1 tsp vanilla extract
- ¾ cup unsweetened cocoa powder
- ¾ cup all-purpose flour
- ½ tsp kosher salt
- ¾ cup semi-sweet chocolate chips
For the frosting:
- ½ cup salted butter room temperature
- ½ cup unsweetened cocoa powder
- 2 cups powdered sugar
- 1 tsp vanilla extract
- 3-4 tbsp heavy cream room temperature
For decorating:
- 12 Oreo cookies
- gummy worms
- candy corn pumpkins
- halloween sprinkles
Instructions
For the brownies:
- Preheat the oven to 325°F. Line an 8×8-inch metal baking pan with parchment paper, leaving some overhang on the sides. Melt the butter in the microwave and allow it to cool slightly.
- In a large bowl, whisk together the melted butter, granulated sugar and brown sugar until well combined. Add the eggs and vanilla and whisk until the mixture is smooth and glossy, about 1-2 minutes.
- Add the cocoa powder, flour and salt. Use a rubber spatula to gently fold everything together until just combined. Don't over mix. Fold in the chocolate chips. Spread the brownie batter evenly into the prepared pan.
- Bake for 25–30 minutes, or until the edges are set and a toothpick inserted near the center comes out with moist, fudgy crumbs. Begin checking around 24–25 minutes. Do not over bake. Let the brownies cool completely in the pan.
For the frosting:
- While the brownies cool, make the chocolate fudge frosting. Beat the softened butter until creamy. Add the cocoa powder, powdered sugar and vanilla and mix on low until combined. Add the heavy cream 1 tablespoon at a time and beat until the frosting is smooth, creamy and easily spreadable. You may not need all 4 tablespoons.
For the toppings:
- Add the Oreos to a food processor and pulse until finely crushed and resembling dirt. You can also add them to a ziplock bag and smash with a rolling pin or other kitchen utensil.
- Once the brownies are completely cool, use the parchment paper to lift them from the pan. Spread the chocolate fudge frosting evenly over the top in an even layer. Generously sprinkle the crushed Oreos over the frosting to create the dirt. Decorate with gummy worms, candy corn pumpkins, Halloween sprinkles and any other spooky candy or decorations you'd like. Slice into 9 squares and serve.