
Let me take you back to a time when the smell of freshly baked brownies filled the kitchen, wrapping you in a warm hug of nostalgia. Picture yourself biting into a rich brownie, only to discover delightful chunks of peanut butter cups mixed throughout. These peanut butter cup brownies are not just easy to make; they are a fast and delightful way to bring a smile to anyone’s face. Trust me, once you try this recipe, it will quickly become a favorite in your home.
Why You’ll Love Peanut Butter Cup Brownies
- Fast: You can have the main components prepped and in the oven in about 20 minutes.
- Easy: It’s a simple “brown and bake” method that even beginner cooks can master.
- Giftable: This is a sturdy dish that travels well, making it perfect for potlucks or as a “get well soon” meal.
- Crowd-pleasing: Even people who think they don’t like brownies usually fall in love with this creamy, chocolatey version!
Ingredients
- 1 cup unsalted butter, melted – This gives the brownies a rich and moist texture.
- 2 cups granulated sugar – For that perfect sweetness.
- 4 large eggs – They help bind everything together.
- 2 teaspoons vanilla extract – A splash of vanilla elevates the flavor.
- 1 cup all-purpose flour – The base for our brownie batter.
- 1 cup unsweetened cocoa powder – For that deep chocolate flavor.
- 1/2 teaspoon salt – Just a pinch to balance the sweetness.
- 1/2 teaspoon baking powder – To give the brownies a little lift.
- 1 cup peanut butter cups, chopped (plus extra for topping) – This is the star of the show!
- 1/2 cup peanut butter – For an extra layer of creamy goodness.
How to Make Peanut Butter Cup Brownies
- Preheat the oven to 350°F (175°C). Grease a 9×13 inch baking pan.
- In a large bowl, combine the melted butter and granulated sugar. Mix until well combined.
- Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
- In another bowl, whisk together the flour, cocoa powder, salt, and baking powder.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Fold in the chopped peanut butter cups.
- Pour half of the brownie batter into the prepared baking pan, spreading it evenly.
- In a small microwave-safe bowl, melt the peanut butter until smooth. Drizzle half of the melted peanut butter over the brownie batter in the pan.
- Pour the remaining brownie batter over the melted peanut butter layer, smoothing it out.
- Drizzle the remaining melted peanut butter on top and swirl it gently with a knife.
- Top with extra chopped peanut butter cups if desired.
- Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
- Allow to cool in the pan before cutting into squares and serving.
Substitutions & Additions
If you want to switch things up, here are some ideas:
- Chocolate Chips: Add a cup of chocolate chips for extra gooeyness.
- Nut Allergies: Use sunflower seed butter instead of peanut butter.
- Gluten-Free: Substitute all-purpose flour with a gluten-free blend.
Tips for Success
- Do not over mix the batter after adding the dry ingredients; this keeps your brownies fudgy.
- For the perfect swirl, let the peanut butter cool slightly before drizzling on top.
- Make sure to let the brownies cool completely before cutting to avoid crumbling.
How to Store Peanut Butter Cup Brownies
To keep your brownies fresh, store them in an airtight container at room temperature for up to 3 days. You can also refrigerate them for about a week. If you want to keep them longer, consider freezing them. Wrap individual squares in plastic wrap and place them in a freezer-safe bag; they can last for up to 3 months!
FAQs
Can I use crunchy peanut butter instead of smooth?
Absolutely! Crunchy peanut butter will give your brownies an extra texture.
Can I make these brownies ahead of time?
Yes, you can bake them a day in advance. Just store them properly to keep them moist.
What can I serve with these brownies?
They are delicious on their own, but a scoop of vanilla ice cream pairs perfectly!
For more delicious recipes, check out chocolate chip cookies or classic vanilla cupcakes for treats you will love!
Don’t forget to follow our Pinterest for more sweet inspirations!

Peanut Butter Cup Brownies
Equipment
- 9×13-inch baking pan
- Large bowl
- Small microwave-safe bowl
Ingredients
Brownie Ingredients
- 1 cup unsalted butter melted
- 2 cups granulated sugar
- 4 large eggs
- 2 teaspoons vanilla extract
- 1 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- 1/2 teaspoon salt
- 1/2 teaspoon baking powder
- 1 cup peanut butter cups chopped (plus extra for topping)
- 1/2 cup peanut butter
Instructions
- Step 1: Preheat the oven to 350°F (175°C). Grease a 9×13 inch baking pan.
- Step 2: In a large bowl, combine the melted butter and granulated sugar. Mix until well combined.
- Step 3: Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
- Step 4: In another bowl, whisk together the flour, cocoa powder, salt, and baking powder.
- Step 5: Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Step 6: Fold in the chopped peanut butter cups.
- Step 7: Pour half of the brownie batter into the prepared baking pan, spreading it evenly.
- Step 8: In a small microwave-safe bowl, melt the peanut butter until smooth. Drizzle half of the melted peanut butter over the brownie batter in the pan.
- Step 9: Pour the remaining brownie batter over the melted peanut butter layer, smoothing it out.
- Step 10: Drizzle the remaining melted peanut butter on top and swirl it gently with a knife.
- Step 11: Top with extra chopped peanut butter cups if desired.
- Step 12: Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
- Step 13: Allow to cool in the pan before cutting into squares and serving.
