If you're looking for the ultimate dessert to wow your guests at a birthday party — or any celebration — look no further than Birthday Cake Oreo Fudge Brownies! This recipe is a delightful mix of rich, fudgy brownies, stuffed with layers of Oreo cookies and birthday cake flavors. The result? A sweet, crunchy, gooey masterpiece that combines everyone’s favorite flavors into one indulgent bite. These brownies are perfect for any special occasion or just when you’re craving something extra decadent. Ready to dive into the recipe? Let’s get started!
What Are Birthday Cake Oreo Fudge Brownies?
Birthday Cake Oreo Fudge Brownies are rich, fudgy brownies packed with layers of Birthday Cake-flavored Oreo cookies, extra sprinkles, and a velvety fudge topping. Imagine a chewy brownie with bites of crunchy Oreo cookies, a burst of birthday cake flavor, and a fudgy finish. These brownies are the perfect blend of a classic brownie with the whimsical sweetness of birthday cake Oreos, making them irresistible for any sweet tooth.
Ingredients List for Birthday Cake Oreo Fudge Brownies
Let’s break down all the ingredients you'll need to make these Birthday Cake Oreo Fudge Brownies. This recipe is divided into three main parts: the brownie base, the Birthday Cake Oreo layer, and the fudge topping.
For the Brownie Base:
- 1 cup (2 sticks) unsalted butter, melted
- 1 ½ cups granulated sugar
- 1 cup brown sugar, packed
- 4 large eggs, room temperature
- 2 teaspoons vanilla extract
- 1 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- ½ teaspoon salt
- ½ teaspoon baking powder
- 1 cup semi-sweet chocolate chips
For the Oreo Layer:
- 1 package Birthday Cake-flavored Oreo cookies (about 36 cookies)
- ½ cup rainbow sprinkles
For the Fudge Topping:
- 1 can (14 oz) sweetened condensed milk
- 2 cups semi-sweet or dark chocolate chips
- 1 tablespoon unsalted butter
- 1 teaspoon vanilla extract
Substitutions and Variations
There are plenty of ways to switch up the flavors or make these brownies fit your dietary preferences. Here are a few substitution and variation ideas:
- Gluten-Free: Substitute the all-purpose flour with a gluten-free flour blend. Also, ensure your Oreos are gluten-free, as they now make gluten-free options!
- Dairy-Free: Replace the butter with a dairy-free alternative like coconut oil or a vegan butter substitute. Use dairy-free chocolate chips and ensure the condensed milk is a dairy-free version (available in many stores).
- Different Oreo Flavors: Not a fan of Birthday Cake Oreos? No problem! You can substitute with any Oreo flavor you like — Mint Oreos, Peanut Butter Oreos, or classic Oreos all work great.
- Peanut Butter Lover’s Version: Add peanut butter to the fudge topping or swirl it into the brownie batter for a decadent peanut butter-chocolate combo.
Step-by-Step Cooking Instructions

Now that we’ve gathered all the ingredients, let’s go through the step-by-step process of making these decadent Birthday Cake Oreo Fudge Brownies.
1. Preheat the Oven and Prepare the Pan
Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish or line it with parchment paper for easy removal of the brownies later.
2. Prepare the Brownie Batter
In a large mixing bowl, combine the melted butter, granulated sugar, and brown sugar. Whisk until smooth and creamy. Add the eggs, one at a time, mixing well after each addition. Stir in the vanilla extract.
In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder. Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Be careful not to overmix the batter. Finally, fold in the chocolate chips.
3. Add the Oreo and Sprinkle Layer
Pour half of the brownie batter into the prepared baking dish and spread it evenly with a spatula. Press a layer of Birthday Cake Oreo cookies over the batter, making sure they’re spread out evenly. Sprinkle half of the rainbow sprinkles over the Oreos.
Pour the remaining brownie batter on top, spreading it gently to cover the Oreo and sprinkle layer.
4. Bake the Brownies
Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs (but no wet batter). Once baked, remove from the oven and let the brownies cool completely in the pan.
5. Prepare the Fudge Topping
While the brownies are cooling, make the fudge topping. In a medium saucepan, combine the sweetened condensed milk, chocolate chips, and butter over low heat. Stir constantly until the chocolate is melted and the mixture is smooth and glossy. Remove from heat and stir in the vanilla extract.
6. Spread the Fudge Topping
Once the brownies are cooled, spread the fudge topping evenly over the top. Use a spatula to create a smooth layer. Add more sprinkles on top for decoration, pressing them gently into the fudge so they stick.
7. Chill and Serve
Place the brownies in the refrigerator for at least 2 hours to allow the fudge topping to set. Once set, lift the brownies out of the pan using the parchment paper overhang, if you used it, and cut them into squares. Serve and enjoy!
How to Cook Birthday Cake Oreo Fudge Brownies: A Step-by-Step Guide
To recap, here’s a quick breakdown of the essential steps to making your Birthday Cake Oreo Fudge Brownies:
- Prepare the Brownie Batter: Mix butter, sugars, eggs, and vanilla. Combine with dry ingredients and fold in chocolate chips.
- Add Oreo Layer: Pour half the brownie batter into the pan, press Birthday Cake Oreos into it, and add sprinkles.
- Bake the Brownies: Bake until a toothpick comes out clean, then let cool.
- Make the Fudge Topping: Melt chocolate chips, condensed milk, and butter together. Spread over cooled brownies.
- Chill: Refrigerate until the fudge is set, then cut and serve.
Common Mistakes to Avoid
While these brownies are relatively simple to make, a few common mistakes could affect the outcome. Here’s how to avoid them:
- Overmixing the Batter: When combining the wet and dry ingredients, mix only until just combined. Overmixing can result in tough brownies.
- Undercooking or Overcooking the Brownies: Insert a toothpick into the center to check for doneness. The toothpick should have moist crumbs, but no wet batter. Overbaking can make the brownies dry, while underbaking may leave them too gooey.
- Not Allowing Enough Cooling Time: Allow the brownies to cool completely before adding the fudge topping. Otherwise, the fudge might melt into the brownie layer.
Serving and Presentation Tips
To make these Birthday Cake Oreo Fudge Brownies even more special, you can serve them in creative ways:
- Birthday Cake Dessert Platter: For a birthday party, serve the brownies on a large platter with extra sprinkles and candles for a festive touch.
- A La Mode: Warm up a brownie and serve it with a scoop of vanilla ice cream or birthday cake-flavored ice cream for an extra indulgent dessert.
- Drizzle It Up: Drizzle some melted white chocolate or peanut butter over the top of the brownies for extra flair and flavor.
How to Serve Birthday Cake Oreo Fudge Brownies
These brownies are best served cold or at room temperature. They’re rich and fudgy, so you can cut them into small squares for serving at parties or as a dessert bar item. If serving them for a birthday party, top each brownie square with a small birthday candle for an extra festive touch. Pair these brownies with a tall glass of milk or hot coffee for the ultimate indulgence.
Presentation Ideas for Birthday Cake Oreo Fudge Brownies
Make your Birthday Cake Oreo Fudge Brownies stand out with these fun presentation ideas:
- Sprinkle Explosion: Top each brownie with extra sprinkles and mini Oreo cookies for a colorful, over-the-top dessert that screams birthday fun.
- Layered Brownie Bars: For a more polished look, carefully layer the brownies in a clear serving dish, showcasing the distinct layers of Oreos, fudge, and sprinkles.
- Brownie Sundae: Serve the brownies in bowls with scoops of birthday cake ice cream, whipped cream, and more sprinkles for a brownie sundae bar.
Birthday Cake Oreo Fudge Brownies Recipe Tips
To ensure your brownies turn out perfectly every time, here are a few extra tips:
- Use Parchment Paper: Lining your baking dish with parchment paper makes it easier to remove the brownies from the pan and cut them cleanly.
- Chill for Clean Cuts: For perfect squares, refrigerate the brownies until the fudge sets, then use a sharp knife to cut them into pieces. Clean the knife between cuts for the best results.
- Add Texture: For an extra crunch, add chopped peanuts or pretzels between the Oreo layer and the fudge topping.
Frequently Asked Questions (FAQs)
Q: Can I freeze Birthday Cake Oreo Fudge Brownies?
A: Yes! Wrap the brownies tightly in plastic wrap and place
them in a freezer-safe container. They can be frozen for up to 3 months. Thaw them in the refrigerator overnight before serving.
Q: How long will these brownies last?
A: Stored in an airtight container, these brownies will last up to 5 days at room temperature or up to a week in the fridge.
Q: Can I use a boxed brownie mix?
A: Absolutely! If you’re short on time, feel free to use a boxed brownie mix for the base. Just follow the package instructions and add the Oreo and fudge layers as directed in this recipe.
Q: Can I use regular Oreos instead of Birthday Cake Oreos?
A: Yes! If you can’t find Birthday Cake Oreos or prefer another flavor, you can easily substitute them with regular Oreos or any other flavor you like.
Conclusion
These Birthday Cake Oreo Fudge Brownies are a party in every bite! With their fudgy brownie base, crunchy Oreo middle, and decadent fudge topping, they’re the ultimate dessert for birthdays, celebrations, or whenever you’re craving something sweet and fun. Whether you follow the recipe exactly or get creative with your own variations, this dessert is guaranteed to be a hit. Happy baking!
PrintDecadent Birthday Cake Oreo Fudge Brownies Recipe
Celebrate any occasion with these Decadent Birthday Cake Oreo Fudge Brownies! Combining rich, fudgy brownies with chunks of Birthday Cake Oreos and a gooey chocolate center, these brownies are the ultimate treat for cookie lovers. Each bite delivers a burst of Oreo's signature birthday cake flavor, making it perfect for birthdays, parties, or whenever you crave something sweet and indulgent. Easy to make and irresistibly delicious!
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 1 hour
- Yield: 16 brownies 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
- For the brownies:
- 1 cup unsalted butter, melted
- 1 ½ cups granulated sugar
- 4 large eggs
- 1 tsp vanilla extract
- 1 cup all-purpose flour
- ½ cup cocoa powder
- ½ tsp salt
- ½ tsp baking powder
- ½ cup semi-sweet chocolate chips
- 1 package Birthday Cake Oreos (about 15 cookies), coarsely chopped
- For the fudge layer:
- ½ cup sweetened condensed milk
- 1 cup semi-sweet chocolate chips
Instructions
- Preheat oven to 350°F. Grease and line a 9x13-inch baking pan with parchment paper.
- In a large bowl, whisk together melted butter and sugar. Add eggs and vanilla, and whisk until smooth.
- In a separate bowl, sift together flour, cocoa powder, salt, and baking powder. Slowly add the dry ingredients to the wet mixture, stirring until just combined.
- Fold in the chocolate chips and half of the chopped Birthday Cake Oreos.
- For the fudge layer, heat the condensed milk and chocolate chips in a microwave-safe bowl, stirring until smooth and melted.
- Pour half of the brownie batter into the prepared pan. Spread the fudge layer evenly over the batter, then top with the remaining brownie batter. Sprinkle the remaining chopped Oreos on top.
- Bake for 30-35 minutes, or until the brownies are set and a toothpick comes out with moist crumbs.
- Let the brownies cool completely before cutting into squares.
Notes
- For a gooier texture, slightly underbake the brownies and allow them to set while cooling.
- Store leftover brownies in an airtight container at room temperature for up to 3 days.
- You can substitute other Oreo flavors to switch up the recipe!
Nutrition
- Serving Size: 1 brownie (approx. 1/16 of recipe)
- Calories: 320
- Sugar: 30g
- Sodium: 180mg
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