Halloween Oreo Brownies are a fun and festive twist on classic brownies, packed with chunks of Oreo cookies and decorated with spooky Halloween touches. These brownies are rich, fudgy, and have that perfect cookie crunch inside that Oreo lovers will adore. The Halloween decorations, like candy eyes or orange and black sprinkles, make them look ready for any party or trick-or-treat gathering.
I love making these brownies because they’re super simple and a big hit with both kids and adults. Mixing Oreo cookies into the batter gives every bite an extra special surprise. Plus, decorating them is a fun way to get creative and get the whole family involved. I always end up sneaking a few warm ones right out of the pan because they’re just that good.
These brownies are my go-to treat for any Halloween celebration. I like to serve them on a colorful platter alongside some milk or hot chocolate to keep things cozy. They bring a little spooky fun without being too scary or tricky, so everyone can enjoy the sweet, chocolaty goodness. It’s the kind of recipe that makes getting into the Halloween spirit easy and delicious!
Halloween Oreo Brownies Key Ingredients & Substitutions
Butter: Melted unsalted butter adds richness and moisture. If you want a dairy-free version, try coconut oil, but the flavor will change slightly.
Oreo Cookies: The Halloween Oreos with orange creme give a fun color and flavor twist. If you can’t find these, classic Oreos or any chocolate sandwich cookie work well.
Cocoa Powder: Use unsweetened cocoa for that deep chocolate flavor. Dutch-processed cocoa also works but may change the brownie’s texture slightly.
Orange Decorating Chocolate: This adds festive flair. You can swap with colored white chocolate melts or piped icing if you prefer.
How Do I Get Fudgy, Moist Halloween Oreo Brownies?
The secret is gentle mixing and proper bake time. Overmixing toughens brownies, so carefully fold in dry ingredients.
- Melt butter and whisk with sugar for smooth mixing.
- Add eggs one at a time, mixing well but gently.
- Don’t overfold after adding flour and cocoa powder—stop as soon as combined.
- Bake until a toothpick shows moist crumbs, not dry batter, to keep fudgy texture.
- Let brownies cool fully in the pan before cutting to firm up and make clean squares.
Equipment You’ll Need
- 9×13-inch baking pan – I like using this size for even baking and easy handling.
- Parchment paper – helps lift the brownies out cleanly and makes cleaning easier.
- Mixing bowls – for combining ingredients smoothly without messes.
- Whisk or spatula – a whisk makes mixing easier, but a spatula helps fold in ingredients gently.
- Measuring cups and spoons – for accurate ingredient amounts.
- Microwave-safe bowl – for melting chocolate or candy melts.
Flavor Variations & Add-Ins
- Use dark chocolate or semi-sweet chocolate chips instead of chunks for a richer flavor.
- Add chopped nuts like walnuts or pecans for extra crunch and flavor.
- Mix in Halloween-themed candies or M&Ms for bursts of color and sweetness.
- Swirl in cream cheese or peanut butter before baking for extra richness and flavor complexity.
Halloween Oreo Brownies
Ingredients You’ll Need:
For The Brownie Batter:
- 1 cup (225g) unsalted butter, melted
- 2 cups (400g) granulated sugar
- 4 large eggs
- 1 tbsp vanilla extract
- 1 cup (120g) all-purpose flour
- 3/4 cup (75g) unsweetened cocoa powder
- 1/2 tsp salt
- 1/2 tsp baking powder
- 15-20 Oreo cookies with orange creme filling (Halloween edition Oreos), roughly chopped
For The Topping:
- Extra whole Halloween Oreo cookies
- Orange decorating chocolate or orange-colored candy melts for drizzling
How Much Time Will You Need?
This recipe takes about 15 minutes to prepare and 30-35 minutes to bake. After baking, you’ll want to let the brownies cool completely (about 1 hour) before drizzling the chocolate and slicing. So overall, plan for around 1 hour and 45 minutes including cooling time.
Step-by-Step Instructions:
1. Prepare your pan and oven:
Heat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving some extra to help lift the brownies out easily later.
2. Mix the wet ingredients:
In a large bowl, whisk together the melted butter and granulated sugar until smooth. Add the eggs one by one, whisking well after each. Stir in the vanilla extract.
3. Combine the dry ingredients and mix:
In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder. Gradually fold the dry ingredients into the wet mixture, stirring gently until just mixed—don’t overmix!
4. Add the chopped Oreos:
Fold the roughly chopped Halloween Oreos into the batter, distributing them evenly.
5. Bake the brownies:
Pour the batter into the prepared pan, spreading it evenly with a spatula. Press extra whole Oreos on top. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs but not wet batter.
6. Cool and decorate:
Let the brownies cool completely in the pan on a wire rack. Once cooled, melt the orange decorating chocolate or candy melts according to package directions. Drizzle it over the brownies in fun Halloween patterns, such as spider webs or skeleton ribs.
7. Serve and enjoy:
Cut the brownies into squares and enjoy your fudgy, festive Halloween Oreo Brownies with chocolatey bites and crunchy cookie surprises!
Can I Use Regular Oreos If I Don’t Have Halloween Ones?
Absolutely! Regular Oreos work perfectly and still add that delicious cookie crunch and creaminess. You can always add orange decorating chocolate or festive sprinkles to keep the Halloween vibe.
How Should I Store Leftover Halloween Oreo Brownies?
Store leftovers in an airtight container at room temperature for up to 3 days. For longer storage, keep them in the fridge for up to a week or freeze for up to 3 months—just thaw at room temperature before serving.
Can I Make These Brownies Ahead of Time?
Yes! Bake them a day in advance and keep them covered at room temperature. Add the chocolate drizzle fresh on the day you plan to serve so it looks its best.
What If I Don’t Have Orange Decorating Chocolate?
No worries! You can substitute with melted white chocolate colored with orange food coloring, or use orange icing or sprinkles to decorate.
