Oreo Layered Halloween Brownies

As seen in: Sweet Treats to Satisfy Any Craving

Combining brownie mix and orange-filled Oreos, these festive squares offer an inviting blend of textures. They start with a chewy, chocolate base, are layered with cookies and bright orange frosting, then finished with smooth milk chocolate and crunchy Oreo crumbles. Chilling ensures tidy slices and neat layers. Customizing is easy—swap cookie flavors or frosting colors for creative spins. These crowd-pleasers stack perfectly for a party tray, bringing both seasonal flair and bakery-style indulgence to any autumn gathering.

A woman named Sophie is smiling and holding a plate of food.
Created By Sophie
Last updated on Fri, 05 Sep 2025 12:43:14 GMT
A slice of cake with a chocolate and orange frosting. Save Pin
A slice of cake with a chocolate and orange frosting. | sophietable.com

These Oreo Layered Halloween Brownies are the over-the-top treat I make every October when chocolate cravings and the thrill of Halloween collide. With a base of supremely fudgy brownie batter, a middle layer of orange-filled Oreos, and, on top, bold orange and rich milk chocolate frostings, this dessert is a must-make for parties and family fun nights. You get chewy, gooey, crunchy bites every time, plus dazzling color that lights up a holiday table or dessert tray.

I first made these for a neighborhood Halloween block party and I have not been allowed to show up without them since Kids and adults always ask for seconds.

Ingredients

  • Brownie mix: gives you a chewy chocolate foundation always check for a mix with real cocoa for deeper flavor
  • Eggs: help bind the mix together and make the brownies tender choose fresh eggs for the best lift
  • Oil: creates the fudgy texture opt for neutral oil like canola or vegetable
  • Milk: loosens the batter and makes it ultra moist use whole milk if possible for richness
  • Orange filled Oreos: add classic cookies and a festive pop look for the seasonal packs so you get the vibrant centers
  • Milk chocolate frosting: doubles down on the chocolate and adds a creamy layer grab a quality brand for best taste
  • White or vanilla frosting: forms the base for your colored layer smooth and thick frostings are easiest to tint
  • Orange food coloring gel: creates that signature Halloween shade choose gel for intense color without thinning the frosting

Step-by-Step Instructions

Prepare the Pan:
Line a nine inch square baking pan with parchment paper pressing snugly into the corners so the brownies lift out easily
Mix the Batter:
In a large bowl beat together the brownie mix eggs oil and milk using a mixer or sturdy whisk Mix until no lumps remain and batter is glossy
Layer the Oreos:
Scrape the batter into the lined pan and smooth the top Press orange filled Oreo cookies evenly across the surface so every bite gets a cookie
Bake:
Slide the pan into a three hundred fifty degree oven and bake for twenty five to thirty minutes The edges should look set and a toothpick poked in the center comes out with a few crumbs not wet batter
Cool Completely:
Let brownies sit in the pan until fully cool This step is important the frosting will melt if the brownies are warm
Make Orange Frosting:
Scoop the white or vanilla frosting into a bowl Add in the scraped orange cream centers from about ten Oreos plus one teaspoon orange food gel Mix until completely orange and smooth
Frost the Brownies:
Spread the orange frosting evenly across the cooled brownies right to the edges Chill in the fridge for thirty minutes so the layer firms up
Add Chocolate Frosting and Toppings:
Once chilled gently spread the milk chocolate frosting on top Crumble remaining Oreos over for a chunky cookie finish
Cut and Serve:
Using a hot wet knife slice the chilled brownies into neat squares Wipe the knife clean each time for sharp edges
A slice of Oreo layered Halloween brownies. Save Pin
A slice of Oreo layered Halloween brownies. | sophietable.com

The orange Oreos are my favorite part to hunt for each season plus scraping the centers makes my kitchen smell like vanilla candy. My kids love helping mix the frosting until it looks just like pumpkin.

Storage Tips

Store these brownies in an airtight container in the fridge for up to four days. Separate layers with parchment so the frosting does not get messy. Let them sit out for ten minutes before serving for the best texture.

Ingredient Substitutions

If you cannot find orange filled Oreos any flavored sandwich cookie works. You can tint the frosting in any spooky color purple or green is also fun. Gluten free mixes and cookies swap in with no trouble.

Serving Suggestions

Stack brownies on a Halloween platter with gummy worms or candy eyes for a playful dessert tray. Pair with vanilla ice cream or serve with mugs of hot cocoa after trick or treating for extra indulgence.

A slice of cake with a chocolate and orange frosting. Save Pin
A slice of cake with a chocolate and orange frosting. | sophietable.com

Cultural and Historical Context

Halloween treats like these celebrate the playful spirit of fall in the US when families gather for costume parties and sweets. Oreos have been reinvented for holidays for decades but using them in homemade layered bars always feels a bit more special.

Commonly Asked Questions

→ How do I get vibrant orange frosting?

Blend vanilla frosting with the scraped orange filling from seasonal Oreos and a bit of orange food coloring gel for a bold hue.

→ Do I need special tools?

No, just a mixing bowl, pan, and spatula. Lining your pan with parchment ensures easy removal and tidy squares.

→ What is the best way to layer Oreos?

Press whole Oreos into the brownie batter before baking to ensure even cookie distribution and satisfying crunch in each bite.

→ How long should I chill before slicing?

At least 30 minutes in the refrigerator helps layers set firmly for sharp, bakery-style squares when cut.

→ Can I use colored frosting for other holidays?

Absolutely—try purple or green for other occasions, or any fun color to match your celebration.

→ What's the best way to store leftovers?

Refrigerate in an airtight container with parchment between layers for up to four days. Allow to sit out briefly before serving.

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Oreo Layered Halloween Brownies

Fudgy brownies stacked with Oreos, bright orange frosting, and a chocolatey finish—perfect for festive fall gatherings.

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Preparation Time
20 Minutes
Cooking Duration
30 Minutes
Overall Time
50 Minutes
Created By: Sophie

Recipe Type: Desserts

Skill Level: Simple

Cuisine Type: American

Portion Size: 16 Number of Servings (16 brownie squares)

Diet Preferences: Vegetarian-Friendly

What You'll Need

→ Brownie Base

01 1 box (approximately 500 g) chocolate brownie mix
02 2 large eggs
03 80 ml neutral oil (such as canola or vegetable)
04 60 ml whole milk

→ Cookie Layer

05 16 orange-filled Oreo sandwich cookies

→ Frostings and Decoration

06 250 g vanilla or white frosting
07 1 teaspoon orange food coloring gel
08 150 g milk chocolate frosting

Step-by-Step Directions

Step 01

Line a 23 cm square baking pan with parchment paper, pressing it securely into the corners to facilitate easy removal after baking.

Step 02

In a large mixing bowl, combine brownie mix, eggs, oil, and milk. Beat with a hand mixer or whisk until the batter is glossy and completely smooth.

Step 03

Pour the brownie batter into the prepared pan. Arrange orange-filled Oreo cookies evenly over the surface, gently pressing them halfway into the batter.

Step 04

Transfer to a preheated oven at 175°C and bake for 25 to 30 minutes, or until the edges are set and a toothpick inserted into the center comes out with a few moist crumbs.

Step 05

Remove from the oven and allow brownies to cool fully in the pan to prevent the frosting from melting when applied.

Step 06

Scoop the vanilla frosting into a bowl. Scrape the orange centers from approximately 10 Oreos and add to the frosting. Mix in orange food coloring gel, beating until the color is vivid and the texture is smooth.

Step 07

Spread the orange-tinted frosting evenly across the cooled brownies, ensuring full coverage to the edges. Chill in the refrigerator for 30 minutes to allow the layer to set.

Step 08

Once chilled, evenly spread milk chocolate frosting on top. Finely crush the remaining Oreos and scatter generously over the finished layer.

Step 09

Using a sharp knife heated under hot water and wiped dry, slice brownies into neat squares. Clean the knife between cuts for tidy edges.

Helpful Notes

  1. Chilling before slicing ensures defined layers and prevents the frosting from smearing.
  2. The orange centers from the Oreos are used for flavor and color in the frosting layer.
  3. Any sandwich cookie or food coloring gel can be substituted for seasonal variation.

Recommended Tools

  • 23 cm square baking pan
  • Large mixing bowl
  • Whisk or electric mixer
  • Rubber spatula
  • Sharp knife
  • Parchment paper

Allergen Information

Always review ingredients for any allergens and consult a healthcare provider with any concerns.
  • Contains wheat (gluten), eggs, milk, and soy. May contain traces of nuts depending on chosen frostings and cookies.

Nutritional Information (Per Serving)

These details are estimates and shouldn't be considered professional health advice.
  • Calories: 395
  • Fat Content: 17 grams
  • Carbohydrate Content: 54 grams
  • Protein Content: 4 grams