These amazing Peanut Butter Brownies start with a chewy chocolate brownie recipe topped with creamy peanut butter frosting, chocolate glaze and mini Reese’s peanut butter cups.
These Peanut Butter Brownies are just as amazing as they look. I like to make them 1 day in advance because I think they taste even better after the brownies have had time to cool in the fridge. You just can’t beat the peanut butter/chocolate combo!
How to make Peanut Butter Brownies:
Make the Brownies:
In a mixing bowl add granulated and brown sugars and melted butter. Beat until well combined. Add eggs and egg yolk, beating after each addition. Add milk and vanilla extract.
While brownies cool, make the Peanut Butter Frosting:
Make the Chocolate Glaze: Place chocolate chips and butter in a microwave safe bowl. Microwave in 30 second intervals, stirring in between, until just melted and smooth. Allow to cool for 3-4 minutes. Spread evenly over the frosted brownies. Add chopped Reese’s chocolate to the top. Return to fridge to allow the chocolate to set. Cut into squares and serve!
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Peanut Butter Brownies
Video
Ingredients
Brownies:
- 1 1/2 cups granulated sugar
- 1 1/2 cups light brown sugar , packed
- 1 cup salted butter , melted
- 4 large eggs
- 1 large egg yolk
- 1/3 cup milk
- 2 teaspoons vanilla extract
- 2 1/4 cups all-purpose flour
- 1 cup unsweetened cocoa powder
- 1/2 teaspoon baking powder
- dash salt
Peanut Butter Frosting:
- 1/4 cup butter , room temperature
- 3/4 cup creamy peanut butter
- 1 cup powdered sugar
- 1 teaspoon vanilla extract
- 1-3 Tablespoons milk , as needed
Chocolate Glaze:
- 1 cup semi-sweet chocolate chips
- 5 Tablespoons butter
- 1 small bag mini Reese's chocolates , unwrapped and chopped
Instructions
Brownies:
- Preheat oven to 350 degrees F.
- In a mixing bowl add granulated and brown sugars and melted butter. Beat until well combined. Add eggs and egg yolk, beating after each addition. Add milk and vanilla extract.
- In a separate bowl mix together the flour, cocoa powder, baking powder, and salt. Add dry ingredients to wet ingredients and mix just until combined. The batter will be thick.
- Pour batter into a greased 9x13'' baking pan and spread into an even layer. Bake at 350 degrees for 35-45 minutes or until a toothpick inserted in the center comes out clean. Allow to cool completely.
Peanut Butter Frosting:
- Beat together butter, and peanut butter until smooth. Add powdered sugar and vanilla and beat again until smooth. Add a little splash of milk, beating well until light and fluffy. Add more milk or powdered sugar if needed to make the frosting thicker or thinner.
- Smooth frosting over the top of cooled brownies. Refrigerate while you make the chocolate topping.
Chocolate Glaze:
- Place chocolate chips and butter in a microwave safe bowl. Microwave in 30 second intervals, stirring in between, until just melted and smooth. Allow to cool for 3-4 minutes.
- Spread evenly over the frosted brownies. Add chopped Reese's peanut butter cups on top. Return to fridge to allow the chocolate to set.
Notes
Nutrition
Have you tried this recipe?!
RATE and COMMENT below! I would love to hear your experience.
I originally shared this recipe July 2016. Updated September 2020 with process photos and additional instructions and tips.
Cindy says
Made these for a family get together. We all love peanut butter and chocolate. They turned out great. One of my favorites now.
danni says
Hi there
I don’t suppose you have the recipe conversion in grams (sorry UK) I have checked the conversion rate on a few different websites and they all give variation!
Thanks
Danni
want to do your recipe justice!
Nana says
Hi. For frosting and glaze do we use salted butter or unsalted? Thank you.
Lauren Allen says
Hi Nana,
Either will work fine!
Trevor says
What is the amount per serving?
Lauren Allen says
One brownie.
Trevor says
what is the serving size for this recipe?
Lauren Allen says
One brownie.
Janet says
Made these twice now to rave reviews and recipe requests. They. Are. Amazing!
If you are looking for a recipe that is delicious and will wow your guest, this is it.
Today I was in a really big hurry so I’ll be honest I used a boxed brownie mix with the peanut butter topping and chocolate glaze as noted in this recipe and it was a huge hit. Just be sure to get a really good brownie mix that’s chocolatey and fudgy
Julie A Penkszyk says
These are very gooood.lol