Gooey Oreo Halloween Bars

Category: Sweet Treats Everyone Will Love

These gooey Oreo Halloween bars are loaded with fudgy brownies full of Oreo chunks. Smothered in smooth orange frosting and sprinkled with crushed Oreos, they're a fun black-and-orange treat. A bit of espresso in the batter deepens the chocolate hit, and the mix of crispy cookies and creamy frosting creates a unique bite—just right for Halloween fun!
Emily Watson
By Emily Watson Emily Watson
Last updated on Tue, 15 Apr 2025 20:54:07 GMT
Close-up view of a dessert with chocolate brownie, orange frosting, and Oreo pieces on top. Pin
Close-up view of a dessert with chocolate brownie, orange frosting, and Oreo pieces on top. | thefamilycooks.com

Halloween Oreo Stacked Brownies make the perfect ghostly sweet! These decadent, fudgy brownies feature festive layered Oreos, bright orange icing, and luscious milk chocolate topping. Great for Halloween parties or just scratching that seasonal dessert itch, these gooey treats will wow everyone with their tasty layers and playful combinations. Check out what goes into making these amazing brownies.

WHAT YOU'LL NEED

  • 1 Brownie Mix: Forms your fudgy foundation with deep chocolate goodness.
  • 2 eggs: Works to glue everything together while adding depth to your brownies.
  • 1/3 cup oil: Makes sure your brownies stay tender and gooey.
  • 1/3 cup milk: Gives moisture and helps you mix everything smoothly.
  • 1 Package of Oreo's (with orange filling): Brings Halloween spirit and that satisfying cookie crunch.
  • 1 can of Milk chocolate frosting: Delivers a sweet, creamy crowning touch.
  • 1 can of White or Vanilla frosting: Becomes your spooky orange middle layer.
  • Orange food coloring gel: Turns your frosting into a vibrant Halloween hue.

HOW TO MAKE

Step 1:
Get your oven hot at 350°F and put parchment paper in a 9x9 inch baking dish.
Step 2:
Grab your stand mixer bowl and throw in the Brownie mix, eggs, oil, and milk. Mix it all up with the whisk part until everything looks smooth.
Step 3:
Dump your brownie mix into your lined pan and smooth it out flat. Put Oreos all over the top until you can't see any batter.
Step 4:
Stick the pan in the oven for 25 to 30 minutes. You'll know they're done when you poke them with a toothpick and it comes out clean. Let them cool completely right in the pan.
Step 5:
While you're waiting, make your orange frosting. Mix white or vanilla frosting with the orange stuff from about 10 Oreos. Add a teaspoon of orange food gel and stir until you get a bright pumpkin color.
Step 6:
When the brownies aren't warm anymore, spread all that orange frosting across the top. Stick them in the fridge for half an hour so the frosting can set up.
Step 7:
Take them out after chilling and slather on that milk chocolate frosting over your orange layer. Smash up leftover Oreos and sprinkle them on top for looks.
Step 8:
Cut everything into 3x2 inch chunks and dig in. Those gooey chocolate layers won't last long!

How to Serve and Store

  • These yummy squares taste best a bit cool to keep those frosting layers looking sharp, but room temperature works too if you like them softer.
  • Wanna impress? Cut them tiny and arrange them on a spooky Halloween plate for your party.
  • Got extras? Keep them in a sealed container in your fridge and eat within 3 days. You can even freeze them for up to 2 months and just let them thaw in the fridge when you want some.

Advice from Top Bakers

  • Duff Goldman says to always use parchment paper so you can lift the whole thing out without any sticking drama.
  • Christina Tosi thinks you should chill your brownies before cutting so you get clean edges between all those yummy layers.

MIX IT UP

  • Try using peanut butter Oreos or spreading a layer of peanut butter between your brownie base and cookies.
  • Want them super gooey? Toss some chocolate chips into your brownie mix before it goes in the oven.
  • These aren't just for Halloween! Change the frosting colors to match Christmas, Valentine's Day, or any party theme.

Gooey Oreo Bars

These gooey Oreo bars are packed with chocolate, layered with Oreos, topped with orange frosting, and perfect for Halloween parties. Everyone will love them!

Prep Time
15 mins
Cook Time
30 mins
Total Time
45 mins
By Emily Watson: Emily Watson

Recipe Category: Desserts

Skill Level: Beginner

Cuisine Type: American

Makes: 12 brownies

Dietary Preferences: Vegetarian

What You’ll Need

01 1 box of brownie mix.
02 2 large eggs.
03 1/3 cup of vegetable oil.
04 1/3 cup of whole milk.
05 1 pack of Oreos with orange cream.
06 1 tub of chocolate frosting.
07 1 tub of vanilla or white frosting.
08 A small tube of orange gel food coloring.

Step-by-Step Guide

Step 01

Turn your oven to 350°F and get a 9x9 pan ready by lining it with parchment paper.

Step 02

In a mixing bowl with a stand mixer, toss in the brownie mix, eggs, oil, and milk. Use the whisk attachment to mix it on medium speed until it looks smooth.

Step 03

Pour the brownie mixture into the lined pan, spreading it evenly.

Step 04

Place the Oreos on top of the batter, making sure to cover as much of the surface as you can.

Step 05

Put the pan in the heated oven and bake for 25 to 30 minutes, or until a toothpick in the center comes out clean.

Step 06

Let the brownies cool down fully before moving to the next step.

Step 07

As the brownies cool, stir together about 10 Oreos' orange cream with the white or vanilla frosting. Mix in a teaspoon of the orange gel food coloring and adjust the shade if needed.

Step 08

Spread the orange frosting on the cooled brownies, then pop them in the fridge for half an hour.

Step 09

Take the brownies out of the fridge, layer on the chocolate frosting, and sprinkle crumbled Oreos over the top.

Step 10

Slice into squares about 3x2 inches each and enjoy right away.

Additional Notes

  1. You can make these brownies a day ahead and keep them fresh in a sealed container.
  2. Try adding your favorite Halloween-themed toppings like sprinkles for a festive look.

Essential Tools

  • An oven.
  • A stand mixer.
  • Whisk attachment for the stand mixer.
  • Square baking pan (9x9 inch).
  • Parchment paper or baking liner.

Nutritional Information (Per Serving)

These details are for guidance only and don't replace medical advice.
  • Calories: 350
  • Fats: 20 g
  • Carbohydrates: 40 g
  • Proteins: 4 g