Peanut Butter Brownie Cupcakes
Peanut Butter Brownie Cupcakes are fudge brownie cupcakes topped with a rich peanut butter sauce and a chocolate glaze. Perfection!

I whipped up a batch of these Peanut Butter Brownie Cupcakes to get the party started. There’s just something magical about a chocolate and peanut butter combination. These cupcakes were divine!
Picture rich fudge brownie cupcakes topped with a peanut butter glaze that is almost like caramel. Then on top of that is milk chocolate and a sprinkling of peanuts.
Biting into one of these is like a piece of chocolate heaven. Read on for the recipe and how you can make a batch for your friends and family.
Why You’ll Love Peanut Chocolate Brownie Cupcakes
- Easy to make
- Sweet treat
- Perfect for chocolate and peanut butter lovers
- Kids love them
- Can make for parties

Ingredients
Brownie Cupcake
- Brownie mix
- Eggs
- Water
- Vegetable oil
Peanut Butter Topping
- Sugar
- Light corn syrup
- Smooth peanut butter
Chocolate topping
- Semi-sweet chocolate chips
- Salted butter
- Light corn syrup
- Chopped peanuts, for garnish (optional)

How to Make Peanut Butter Brownie Cupcakes
- Step One: Preheat oven to 350°F. Place 12 cupcake liners in a muffin tin.
- Step Two: Combine brownie mix, eggs, water and oil in a large bowl and stir to blend. Add mix to the cupcake liners until almost full. Bake for 30 minutes or until a toothpick inserted in the centre of a cupcake comes out clean. Cool completely.
- Step Three: After the cupcakes have cooled, begin to make the peanut butter topping by combing sugar and corn syrup in a small pan on the stove on medium heat. Bring to a boil over medium heat then remove from heat. Mix in peanut butter and stir to combine. Drop peanut butter mixture on top of the cupcakes (about 1 teaspoon each). Set aside to cool.
- Step Four: When the peanut butter topping has cooled, start making the chocolate topping by combining chocolate chips, butter and corn syrup in a small saucepan on the stove. Cook on low heat, stirring constantly, until chocolate has completely melted. Remove from heat. Drop chocolate topping on top of the peanut butter topping (about ½ to 1 teaspoon each). Sprinkle chopped peanuts on top. Let cool.
Equipment Needed
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What to Serve With Peanut Butter Brownie Cupcakes
- Chocolate Rice Krispies
- Brownie Mix Cookies
- Fudge Nut Bars
- Peanut Butter Cookie Cups
- Chocolate Chip Cookie Coffee Milkshake
Variations and Substitutions
- You can skip the peanuts or add in another type of nut.
- Try butterscotch sauce instead of peanut butter if you’d prefer or have allergies
- Add a mini Reese’s chocolate as a topping for a nice finishing touch.
- Substitute in other types of chocolate chips such as mini chocolate chips or white chocolate chips.
Storage Instructions
Once the cupcakes are decorated you can store them for up to 3 days at room temperature in an airtight container.
You can also store them in an airtight container in the fridge for 5 to 6 days.
Can I Freeze?
Yes, you can freeze these brownie cupcakes. Store them in a freezer-safe container for up to 3 months.

Chocolate Cupcake Recipes
- Banana Chocolate Chip Cupcakes
- Death by Chocolate Cupcakes
- Chocolate Peanut Butter Cupcakes
- S’mores Cupcakes
- Reese’s Peanut Butter Cupcakes
- Oreo Cupcakes
You’ll also like Peanut Butter Cheesecake Brownies, Salted Caramel Brownies, and Brownie Cheesecake Cups.
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If you make the recipe, rate it on the recipe card below and tag me on Instagram and use #simplystacie. I like sharing the photos on my Instagram stories!
Peanut Butter Brownie Cupcakes
SAVE THIS RECIPE!
Ingredients
- 1 package brownie mix 18oz/440g package
- 2 large eggs
- ⅓ cup water
- ¼ cup vegetable oil
Peanut Butter Topping
- ⅓ cup sugar
- ⅓ cup light corn syrup
- ½ cup smooth peanut butter
Chocolate Topping
- ¾ cup semi-sweet chocolate chips
- 3 tbsp salted butter
- 1 tbsp light corn syrup
- chopped peanuts for garnish (optional)
Instructions
- Preheat oven to 350°F. Place 12 cupcake liners in a muffin tin.
- Combine brownie mix, eggs, water and oil in a large bowl and stir to blend. Add mix to the cupcake liners until almost full. Bake for 30 minutes or until a toothpick inserted in the centre of a cupcake comes out clean. Cool completely.
- After the cupcakes have cooled, begin to make the peanut butter topping by combining sugar and corn syrup in a small pan on the stove on medium heat. Bring to a boil over medium heat then remove from heat. Mix in peanut butter and stir to combine. Drop peanut butter mixture on top of the cupcakes (about 1 teaspoon each). Set aside to cool.
- When the peanut butter topping has cooled, start making the chocolate topping by combing chocolate chips, butter and corn syrup in a small saucepan on the stove. Cook on low heat, stirring constantly, until chocolate has completely melted. Remove from heat. Drop chocolate topping on top of the peanut butter topping (about ½ to 1 teaspoon each). Sprinkle chopped peanuts on top. Let cool.
Equipment
Nutrition
The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.
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I just wanted to thank you for linking this recipe up to What’s Cooking Wednesday. You are our featured blogger this week! They look heavenly! http://www.turningclockback.com/2014/12/whats-cooking-wednesday-recipe-linky-67.html
That looks amazing. I love the combination of chocolate and peanut butter!
Yum! These look delicious! Looking forward to trying the recipe. 🙂
This look so amazing, and it’s awesome that this is supporting such a great cause ^.^
YUMMY Sounding!! Come link up and share this post with us http://thestylesisters.blogspot.com/2014/12/centerpiece-wednesday-its-beginning-to.html
Karin
Skor Cupcakes sounds sinfully good
They sell baked goods at our shelter to rise money so love this info on national cupcake day. I think these cupcakes look so good can’t wait to bake some up!
My daughter is the baker in this family, we didn’t know there was a national cupcake day, lol
I was just now reading about this….and glad to hear of this National Cupcake Day. I never knew of it or ever heard of it. It’s great that Canada is following in Australia’s footsteps with this great cause to support all the SPCA’s and Humane Societies across Canada. Next year when this time comes I would like to look into this and hopefully join in the event. Glad to know about this…. I will watch for posts when the time gets here for 2015.
I liked your online cupcake directory! Very cute!! I love the idea because I love cupcakes.
Yum!!
I love cupcakes and your recipes are wonderful. I have a sweet tooth and can’t just eat one for sure. Thanks for the recipes and next time I am going to make cupcakes I will be coming to your site. I love animals too. I have 3 cats and 2 dogs. They are all getting older now. I got 2 of my cats at the Humane society.
Chocolate Cupcakes with Salted Caramel Cream Cheese Topping
Skor Cupcakes
chocolate…the answer is ALWAYS chocolate