Indulge in Oreo & Peanut Butter Brownie Cupcakes: A Dreamy Dessert Mashup
Get ready for a treat that’s pure bliss! I’m so excited to share these Oreo & Peanut Butter Brownie Cupcakes with you. They’re a fantastic mashup of my favorite flavors. Think rich, fudgy brownie goodness swirled with creamy peanut butter and chunks of crunchy Oreos. It’s a layered dessert dream come true.

This recipe is inspired by the joy of creating something special. It’s a taste of the passion Tariq, Amara, and I share at Savory Skies. We believe in bringing people together through food. These cupcakes are perfect for any occasion. They are easy to make. You’ll love every decadent bite. Let’s bake some magic!
Why You’ll Love These Oreo & Peanut Butter Brownie Cupcakes
These treats are an absolute winner! You’ll adore them because:
- They are incredibly easy to whip up.
- The combo of Oreo, peanut butter, and brownie is a guaranteed crowd-pleaser.
- They’re perfect for any get-together or just a Tuesday treat.
- You’ll savor the delightful mix of textures in every bite.
Gathering Your Ingredients for Oreo & Peanut Butter Brownie Cupcakes
Let’s get our kitchen ready for these amazing Oreo & Peanut Butter Brownie Cupcakes! First, preheat your oven to 350°F (175°C). Grab a 12-cup muffin tin and line it with cupcake liners. You’ll need:
- 1 1/4 cups all-purpose flour
- 1 cup granulated sugar
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup buttermilk
- 1/2 cup vegetable oil
- 1 large egg
- 1 teaspoon vanilla extract
- 1/2 cup creamy peanut butter
- 1/2 cup chopped Oreos
For the dreamy peanut butter frosting, gather:
- 1/2 cup butter, softened
- 1 1/2 cups powdered sugar
- 1/4 cup creamy peanut butter
- 2 tablespoons milk
- 1/2 teaspoon vanilla extract
And for that final flourish, have some chopped Oreos and peanut butter cups ready for garnish.

Ingredient Notes and Substitutions for Oreo & Peanut Butter Brownie Cupcakes
Buttermilk is key for a tender crumb. No buttermilk? No worries! Just mix 1 cup of milk with 1 tablespoon of lemon juice or white vinegar. Let it sit for 5 minutes. Use creamy peanut butter for the smoothest frosting. If you love a bit of crunch, crunchy peanut butter works too! For the Oreos, any classic flavor will do. Make sure your butter is truly softened for the frosting. It makes all the difference for that fluffy texture. These little details really help our Oreo & Peanut Butter Brownie Cupcakes shine!
Step-by-Step Guide to Making Oreo & Peanut Butter Brownie Cupcakes
Ready to create some magic? Let’s make these fantastic Oreo & Peanut Butter Brownie Cupcakes together! First, preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with cupcake liners. This makes cleanup a breeze.
- Grab a big bowl. Whisk together the flour, sugar, cocoa powder, baking soda, and salt. This dry mix is our flavor base.
- In another bowl, whisk the buttermilk, oil, egg, and vanilla. These are our wet ingredients.
- Pour the wet into the dry. Mix them until just combined. Don’t overmix! Overmixing makes tough cupcakes.
- Gently fold in the chopped Oreos. Add the 1/2 cup of peanut butter too. Swirl it in like a dream.
- Spoon the batter into the liners. Fill them about two-thirds full. They need room to grow!
- Bake for 18-22 minutes. A toothpick should come out clean. That means they’re perfectly done.
- Cool them in the tin for a few minutes. Then, move them to a wire rack. Let them cool completely. This is super important for frosting.
While they cool, let’s make that amazing frosting.

Baking the Perfect Oreo & Peanut Butter Brownie Cupcakes
Your oven should be at 350°F (175°C). Bake the cupcakes for about 18 to 22 minutes. You’ll know they’re ready when a toothpick inserted into the center comes out clean. No wet batter clinging to it! Let them cool in the muffin tin for about 5 minutes. This helps them firm up a bit. Then, carefully transfer them to a wire rack. They need to be fully cool before frosting. Patience is key here!
Crafting the Creamy Peanut Butter Frosting
Now for the frosting! In a medium bowl, beat the softened butter until it’s super creamy. Slowly add the powdered sugar. Alternate with the milk. Beat until it’s smooth and fluffy. It should look like a cloud. Stir in the peanut butter and vanilla extract. Taste it! You want that perfect balance of sweet and peanut butter. This frosting is the crowning glory for our Oreo & Peanut Butter Brownie Cupcakes.
Tips for Success with Your Oreo & Peanut Butter Brownie Cupcakes
Making these Oreo & Peanut Butter Brownie Cupcakes is a joy. A few simple tips ensure perfection. Don’t overmix the batter. Just mix until the dry and wet ingredients combine. Overmixing makes your cupcakes tough. Ensure your butter is truly softened for the frosting. This makes it light and fluffy. Room temperature butter is your friend here. When frosting, use an offset spatula. It helps spread the frosting evenly. This gives a professional look to your lovely treats.
Expert Tips for Frosting and Garnishing
Frost these beauties once they are completely cool. Use a piping bag for fancy swirls. Or, just use a spoon for a rustic look. Sprinkle chopped Oreos and peanut butter cups on top. Arrange them artfully for a showstopper finish. These final touches make your Oreo & Peanut Butter Brownie Cupcakes extra special.
Serving and Storing Your Delicious Oreo & Peanut Butter Brownie Cupcakes
These Oreo & Peanut Butter Brownie Cupcakes are best enjoyed at room temperature. This lets the flavors really shine. Store any leftovers right away. Keep them in an airtight container. They will stay fresh on the counter for up to 3 days. If it’s warm where you are, the fridge is a better option. Just bring them back to room temperature before serving again. This ensures they taste just as amazing as the first bite!
Frequently Asked Questions about Oreo & Peanut Butter Brownie Cupcakes
Got questions about our Oreo & Peanut Butter Brownie Cupcakes? I’ve got answers!
Can I make these ahead of time? Yes, you absolutely can! Bake the cupcakes a day in advance. Store them in an airtight container at room temperature. Frost them just before serving for the best texture. This makes them great for parties.
How long do these cupcakes stay fresh? These delightful treats maintain their freshness for about 3 days. Store them in an airtight container at room temperature. If your kitchen is warm, the refrigerator is a good option. Just let them come to room temperature before enjoying.
Can I use crunchy peanut butter instead of creamy? Definitely! Using crunchy peanut butter will add a nice texture to both the batter and the frosting. It gives a different kind of delightful bite to your Oreo & Peanut Butter Brownie Cupcakes.
What’s the best way to get clean cuts when serving? For the cleanest cuts, use a sharp knife. Wipe the knife clean between each cut. This prevents the frosting from smearing. It keeps your cupcakes looking neat and tidy.
Nutritional Information for Oreo & Peanut Butter Brownie Cupcakes
Here’s an idea of what you’re getting with each delicious Oreo & Peanut Butter Brownie Cupcake:
- Calories: About 350
- Fat: Around 20g
- Protein: Roughly 4g
- Carbohydrates: Approximately 40g
- Sugar: About 35g
Keep in mind these are estimates. Your exact nutrition can vary slightly.
Share Your Oreo & Peanut Butter Brownie Cupcakes Creations!
Did you make these amazing Oreo & Peanut Butter Brownie Cupcakes? I’d love to hear about it! Share your baking adventures with us. Rate this recipe and leave a comment below. Post your delicious photos on social media too. Tag us so we can see your wonderful creations!
PrintDecadent Oreo Peanut Butter Brownies 12 Ways
Enjoy these delightful Oreo and Peanut Butter Brownie Cupcakes, a perfect fusion of classic flavors baked into a convenient cupcake form.
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Total Time: 40 minutes
- Yield: 12 cupcakes
- Category: Desserts
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 1 1/4 cups all-purpose flour
- 1 cup granulated sugar
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup buttermilk
- 1/2 cup vegetable oil
- 1 large egg
- 1 teaspoon vanilla extract
- 1/2 cup creamy peanut butter
- 1/2 cup chopped Oreos
- 1/2 cup butter, softened
- 1 1/2 cups powdered sugar
- 1/4 cup creamy peanut butter
- 2 tablespoons milk
- 1/2 teaspoon vanilla extract
- Chopped Oreos and peanut butter cups for garnish
Instructions
- Preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with cupcake liners.
- In a large bowl, whisk together the flour, sugar, cocoa powder, baking soda, and salt.
- In a separate bowl, whisk together the buttermilk, vegetable oil, egg, and vanilla extract.
- Pour the wet ingredients into the dry ingredients and mix until just combined. Do not overmix.
- Gently fold in the chopped Oreos and 1/2 cup of peanut butter.
- Spoon the batter evenly into the prepared cupcake liners, filling each about two-thirds full.
- Bake for 18-22 minutes, or until a toothpick inserted into the center comes out clean. Let the cupcakes cool in the tin for a few minutes before transferring them to a wire rack to cool completely.
- While the cupcakes are cooling, prepare the peanut butter frosting. In a medium bowl, beat the softened butter until creamy. Gradually add the powdered sugar, alternating with the milk, and beat until smooth and fluffy. Stir in the peanut butter and vanilla extract.
- Once the cupcakes are completely cool, frost them generously with the peanut butter frosting.
- Garnish with chopped Oreos and peanut butter cups.
Notes
- For an extra peanut butter kick, you can swirl a tablespoon of peanut butter into the top of each cupcake batter before baking.
- Ensure your butter is at room temperature for the creamiest frosting.
- These cupcakes are best enjoyed at room temperature.
Nutrition
- Serving Size: 1 cupcake
- Calories: Approximately 350
- Sugar: Approximately 35g
- Sodium: Approximately 200mg
- Fat: Approximately 20g
- Saturated Fat: Approximately 7g
- Unsaturated Fat: Approximately 13g
- Trans Fat: 0g
- Carbohydrates: Approximately 40g
- Fiber: Approximately 2g
- Protein: Approximately 4g
- Cholesterol: Approximately 30mg























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