Swirly Peanut Butter Brownies

An OUTSTANDING recipe for peanut butter and chocolate to come together in a dense, cakey delight.

Naturally, as with most dense breads, these brownies are WAY BETTER the next day.  Unfortunately, there weren't many leftover to enjoy.  So, if you're planning to make these ahead of time, HIDE THEM!!!


  • 2/3 cup sugar
  • 1/2 cup packed brown sugar
  • 1/2 cup softened butter
  • 2 tablespoon milk
  • 2 eggs
  • 3/4 cups flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1/4 cup creamy peanut butter
  • 1/3 cup peanut butter chips
  • 1 cup semi-sweet chocolate chips, melted OR 1/3 cup cocoa powder

Heat oven to 350ºF. Line a square 8X8 inch brownie pan with parchment paper and spray with nonstick cooking spray. Be sure to leave enough paper overlapping on the sides to be able to lift out cooled brownies.

Melt the semi-sweet chocolate chips in the microwave on 70% power for 1 minute. Stir until practically smooth.  If it's very lumpy, go another 20 seconds at 70% power.  A few lumps won't hurt anything.

(IF YOU DON'T HAVE CHOCOLATE CHIPS, stir in 1/3 cup cocoa powder after you divide the batter in half.)

Beat sugars, butter, milk and eggs in large bowl with electric mixer on medium speed.  Stir in flour, baking powder and salt.

Divide batter in half, a little over a cup each half.  Stir in peanut butter and peanut butter chips into one half.  Stir in melted chocolate chips or 1/3 cup cocoa powder into the remaining half.

Use a 2 inch scooper to scoop chocolate batter into pan in a checkerboard pattern.  Scoop peanut butter batter between the mounds of chocolate batter.

Swirl through batters with a knife or spreader for marbled design. Don't worry about the top of the batter being uneven, it will level off when the brownies bake.

Bake 30 to 35 minutes or until toothpick inserted in center comes out clean.  Cool completely.  Cut them as big or small as you like.


Don't forget a glass of milk or a cup of hot tea to wash these down.
Mmm MMM! They are good!

  • Pingback: Best recipes from around the web » Swirly Peanut Butter Brownies On Simple Daily Recipes()

  • These are scrumptious and oh so good! We can't ever get enough of them!
    Karyn Campbell
    Email Subscriber

  • They tasted absolutly great and my husband, my kids, and my family love them. They were also very easy to prepare and make so I will definaly be making these often!

    • YEAH!!! Lisa!
      Don’t you love when recipes work out that way?
      I’ve made these a few more times since this post and shared them with neighbors. They’ve been a hit every time.

  • Love this blog. I just bookmarked it so can check it often!

    • Thank you, Kathleen!

  • I was looking through your archives for a yummy treat and we found one! Thanks, Jill! I didn’t have any peanut butter chips and they were still great!

    • Hi Stacie!

      We love these, too! I normally don’t have peanut chips on hand, but it doesn’t stop me from making them. We don’t have any trouble eating them without the peanut chips. 😀

      THANK YOU for taking time out to share your success with me!

  • I made a batch of these yesterday for my folks. I didn’t have chocolate chips so I substituted with 1/3 cup cocoa powder. They turned out EXCELLENTLY!

  • Amanda

    Ooh, I have a recipe almost EXACTLY like this one (only difference is the chocolate part has the 1/3 cup cocoa *and* non-melted chocolate chips) and they are to die for. Every side of my family/extended family asks me to bring these to picnics and other family events. Definitely the best brownie recipe out there!

    • Hi Amanda!
      I know the recipe your talking about and it IS to VERY GOOD. The melted chocolate is this recipe gives the brownies a fudgier texture. I love a brownie that sticks to the roof of my mouth and it takes a glass of milk to wash it down.

  • Hi Jill,
    Is there anything better than chocolate & peanut butter? I don’t think so! Thanks for the recipe! Book marked! 🙂

  • vidula

    This recipe looks absolutely wonderful.I have always baked egg less cakes and cookies as I do not like the smell of eggs but this recipe is just so tempting that I plan to make it tomorrow only.Just one query-can i mask the smell of eggs slightly by adding a teaspoon of vanilla essence?Or you can suggest me something else.

    • Hi Vidula!
      A teaspoon of vanilla wouldn’t hurt this brownie recipe one bit. I love using this brownie recipe; it’s super quick to bring together and everybody I know loves peanut butter and chocolate together. Let me know how they turn out for you.

  • vidula

    Hi Jill,

    I made the brownie just now for a gathering of 8-10 people and it looks yummy.i used cocoa and added a few chunks of dark chocolate in the cocoa half but I didn’t have peanut butter chips.My cake got done in 25 minutes only as toothpick inserted in the center came out clean but the top is not as shiny as yours.Will tell more tomorrow after tasting it.

  • vidula

    Thanks a lot Jill for this recipe.It was a big hit among people.I made two batches of brownies and all of it got consumed.People even took a few pieces to home.It has become my all time favorite recipe and I cant thank you enough.

  • jj

    i tried to make these but they turned out more cake like and airy than dense and fudgy. it didnt even have that nice flaky top like in your picture. i dont know what i did wrong. i added the cocoa powder and didnt use peanut butter chips. also, i creamed the butter and sugar and then added the eggs and milk. was that why they were more cake like? i also might have over baked them by a little, even though i put them in the oven for 35 mins. they taste really good though!

  • Shauna

    Thank you so much for posting this! I made these tonight and they were perfect. I made them in a 9×11 glass pan greased with butter and baked for 25 minutes. I also added 1 teaspoon of instant coffee to the cocoa mixture and used 1/3 cup peanut butter to stretch the batter a bit. It was wonderful! No peanut butter chips on hand. Will definitely try that next time though. You are a goddess!

    • AWESOME Shauna! I like your idea of slipping coffee into the cocoa mix. Coffee and chocolate are wonderful together!
      As for those peanut butter chips, I rarely keep them on hand. I’ve made this recipe so many times without them that now it doesn’t really matter. We really like these brownies without any added chips.