Okay, get ready for something truly special—Birthday Cake Oreo Fudge Brownies! These decadent, over-the-top brownies are the perfect sweet treat to celebrate any occasion, but trust me, they’re so fun and festive that you’ll find yourself baking them for no reason at all! Imagine the chewy, fudgy brownie base, layered with creamy birthday cake-flavored frosting and topped with crunchy Birthday Cake Oreos. Every bite is like a party in your mouth, with that irresistible combo of chocolate, cake, and sprinkles. This is one treat that’ll have everyone asking for seconds. Trust me, these will be the star of your next celebration (or just your next snack attack)!
Why You’ll Love Birthday Cake Oreo Fudge Brownies
These brownies aren’t just your typical dessert. Here’s why they’ll become your go-to indulgence:
A Party in Every Bite
These brownies are bursting with birthday cake flavor from the frosting, combined with the classic fudgy brownie texture. Add in the Birthday Cake Oreos, and you’ve got a dessert that’s festive, fun, and totally delicious.
Perfect for Any Occasion
Whether it’s a birthday party, a holiday, or just a Tuesday, these brownies are sure to make any day feel like a celebration. They’re so bright and cheerful, you’ll want to make them all year long!
Fudgy and Rich
The brownie base is rich, dense, and perfectly fudgy—just the way you want it. It’s balanced by the smooth and sweet birthday cake frosting layer, making every bite pure heaven.
Easy to Make
You don’t need any special skills or fancy equipment to make these. The recipe is straightforward, with just a few simple ingredients that create a show-stopping dessert.
Fun and Festive
From the sprinkles to the Birthday Cake Oreos, these brownies are so vibrant and fun. They’ll add a pop of color and joy to any gathering!

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Ingredients
Get ready to dive into a world of sweet and indulgent ingredients! Here’s what you’ll need:
For the Brownie Base:
- Semi-sweet chocolate chips
- Unsalted butter
- Granulated sugar
- Eggs
- All-purpose flour
- Cocoa powder
- Baking powder
- Salt
- Vanilla extract
For the Birthday Cake Frosting:
- Unsalted butter (softened)
- Powdered sugar
- Milk
- Vanilla extract
- Funfetti sprinkles (for the birthday cake vibe!)
For the Topping:
- Birthday Cake Oreos (chopped or whole)
- Extra funfetti sprinkles for garnish (optional)
(Note: The full ingredients list, including measurements, is provided in the recipe card directly below.)
Instructions
Time to bake these birthday magic brownies! Follow these simple steps and watch them come to life.
Step 1: Preheat Your Oven
Preheat your oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper or grease it lightly. This will make sure your brownies come out perfectly every time.
Step 2: Make the Brownie Base
Melt the butter and semi-sweet chocolate chips together in a microwave-safe bowl, stirring every 20 seconds until smooth and melted. Let this mixture cool slightly before proceeding.
In a separate bowl, whisk together the eggs and granulated sugar until light and fluffy. Add the vanilla extract and mix again. Gradually pour in the melted chocolate mixture and stir until combined.
In another bowl, whisk together the flour, cocoa powder, baking powder, and salt. Slowly fold the dry ingredients into the wet ingredients, being careful not to overmix. The batter should be thick and fudgy!
Step 3: Bake the Brownies
Pour the brownie batter into the prepared baking pan and spread it out evenly. Bake for 20-25 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Be careful not to overbake—the fudgy texture is key! Let the brownies cool completely in the pan on a wire rack.
Step 4: Make the Birthday Cake Frosting
While the brownies are cooling, make the birthday cake frosting. In a medium bowl, beat the softened butter until smooth and creamy. Gradually add in the powdered sugar, a little at a time, and mix until fully combined. Add the vanilla extract and a splash of milk to make the frosting smooth and spreadable.
Fold in the funfetti sprinkles to add that signature birthday cake touch.
Step 5: Assemble the Brownies
Once the brownies are completely cooled, spread an even layer of the birthday cake frosting over the top. Don’t be shy with the frosting—more is always better, right?
Step 6: Top with Oreos
Top the frosted brownies with chopped Birthday Cake Oreos (or leave them whole for a more dramatic look). Press them gently into the frosting so they stick.
Step 7: Add the Final Touch
For an extra festive touch, sprinkle some more funfetti sprinkles on top. These will give your brownies that pop of color and extra party vibe.
Step 8: Chill and Serve
Place the brownies in the fridge for about 30 minutes to allow the frosting to set. Once chilled, slice them into squares, and get ready to enjoy the best birthday brownie you’ve ever had!
Step 9: Serve and Celebrate!
Serve these beauties at your next party, or just enjoy them by yourself (no judgment here!). Either way, they’re going to be a hit.
Nutrition Facts
Servings: 12
Calories per serving: 350
Total Fat: 20g
Saturated Fat: 10g
Cholesterol: 55mg
Sodium: 100mg
Total Carbohydrates: 44g
Dietary Fiber: 2g
Sugars: 35g
Protein: 4g
Preparation Time
Prep Time: 15 minutes
Cook Time: 25 minutes
Chill Time: 30 minutes
Total Time: 1 hour 10 minutes
How to Serve Birthday Cake Oreo Fudge Brownies
These brownies are amazing on their own, but here are some fun serving ideas:
With Ice Cream
Top these brownies with a scoop of vanilla or birthday cake-flavored ice cream for a true celebration in every bite.
Perfect for Parties
Bring these to your next party or get-together for a guaranteed crowd-pleaser. The vibrant colors and fun texture will make them the star of the show!
As a Gift
Wrap them up in a cute gift box or tin and give them as a sweet homemade gift. They’re perfect for birthdays, holidays, or just because!
With a Glass of Milk
Pair these brownies with a cold glass of milk for a nostalgic treat. The creamy frosting and fudgy brownie go perfectly with milk—trust me!
Additional Tips
Make Ahead
These brownies can be made ahead of time! You can bake the brownie base, let it cool, and store it in an airtight container for a day or two. Then, add the frosting and toppings just before serving.
Customization
Feel free to mix things up by adding mini chocolate chips, white chocolate chips, or even crushed candy bars to the brownie batter for extra texture and flavor.
Freezing Leftovers
If you have leftovers (though I doubt you will), you can freeze them for up to a month. Just store them in an airtight container with parchment paper between layers to prevent sticking.
Don’t Overbake
For the fudgiest brownies, be sure to watch your baking time carefully. A few moist crumbs on your toothpick is all you need! Overbaking will make them more cake-like.
FAQ Section
Q1: Can I use regular Oreos instead of Birthday Cake Oreos?
A1: Yes, you can! If you can’t find Birthday Cake Oreos, regular Oreos will work just fine. You’ll still get that chocolatey crunch.
Q2: Can I make these brownies gluten-free?
A2: Absolutely! Just swap out the all-purpose flour with a gluten-free flour blend. They’ll still taste amazing!
Q3: Can I make the frosting ahead of time?
A3: Yes! You can make the frosting up to 2 days ahead of time. Just store it in the fridge, and it’ll be ready to spread on the cooled brownies when you’re ready.
Q4: Can I freeze the brownies?
A4: Yes, you can freeze the brownies. After they’ve cooled and been frosted, wrap them in plastic wrap and foil, and freeze for up to 3 months. Just let them thaw before serving.
Q5: What if I don’t have an 8×8-inch pan?
A5: If you don’t have an 8×8-inch pan, you can use a 9×9-inch pan. The brownies may turn out a little thinner, so adjust your baking time by a few minutes.
Q6: Can I use other frosting flavors?
A6: Yes, feel free to experiment! You could use chocolate buttercream, vanilla buttercream, or even cream cheese frosting for a different flavor.
Q7: Can I add other toppings?
A7: Of course! You can add more sprinkles, chocolate chips, or even crushed nuts for extra texture and flavor.
Q8: How long do these brownies last?
A8: These brownies will last for up to 3 days at room temperature or up to 5 days in the fridge. Just make sure they’re stored in an airtight container.
Q9: Can I make these brownies dairy-free?
A9: Yes, you can substitute dairy-free butter and milk for the regular dairy ingredients. The brownies will still be delicious!
Q10: Can I use a different type of chocolate in the brownie base?
A10: Yes, you can use milk chocolate or even white chocolate chips for a different flavor, but keep in mind it will change the overall taste and sweetness of the brownies.
Now go ahead and bake these Birthday Cake Oreo Fudge Brownies—your taste buds are in for a treat!
Print
Birthday Cake Oreo Fudge Brownies Recipe
- Total Time: 0 hours
- Yield: 16 squares 1x
Description
These Birthday Cake Oreo Fudge Brownies are a fun and festive treat that combines the richness of fudgy brownies with the creamy sweetness of birthday cake Oreos. With layers of chocolatey goodness and colorful sprinkles, this dessert is perfect for birthday parties, celebrations, or any time you want to add some fun to your dessert table. The chewy texture and crunchy Oreo bits make these brownies an unforgettable indulgence!
Ingredients
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1 box (18.4 oz) brownie mix (or use your favorite homemade brownie recipe)
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2 large eggs
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1/4 cup vegetable oil
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1/4 cup water
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1/2 cup unsalted butter, melted
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1 teaspoon vanilla extract
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12 Birthday Cake Oreos, chopped into quarters (about 1 1/2 cups)
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1/4 cup colorful sprinkles (optional, for topping)
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1/2 cup white chocolate chips (optional, for extra sweetness)
Instructions
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Preheat the Oven:
Preheat your oven to 350°F (175°C). Grease or line a 9×9-inch baking pan with parchment paper. -
Prepare the Brownie Batter:
In a large mixing bowl, prepare the brownie mix according to the package instructions. Typically, you’ll need the eggs, oil, water, and melted butter. Stir in the vanilla extract until smooth. -
Add the Oreo Pieces:
Gently fold the chopped Birthday Cake Oreos into the brownie batter, making sure they’re evenly distributed throughout the mixture. If desired, add the white chocolate chips at this point. -
Pour and Bake:
Pour the brownie batter into the prepared baking pan, spreading it out evenly with a spatula. Sprinkle additional colorful sprinkles on top if you want to make them extra festive. -
Bake:
Bake the brownies in the preheated oven for about 30-35 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs (not wet batter). The baking time may vary depending on your oven and the thickness of your brownies. -
Cool and Serve:
Allow the brownies to cool in the pan for at least 10 minutes before transferring them to a wire rack to cool completely. Once fully cooled, cut them into squares and serve. -
Optional Garnish:
For an extra touch, you can drizzle melted white or dark chocolate over the brownies or top with more sprinkles before serving.
Notes
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If you prefer a more cake-like texture, add a little more water or oil to the brownie mix to achieve a lighter consistency.
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Feel free to experiment with different Oreo flavors (like regular or golden Oreos) for a unique twist!
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These brownies are great for any celebration and can be customized with various colored sprinkles to match the theme of your party.
- Prep Time: 10 minutes
- Cook Time: 30-35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie
- Calories: 210
- Sugar: 22g
- Sodium: 90 mg
- Fat: 11g
- Saturated Fat: 5g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 30mg