Peanut Butter Swirl Brownies

Today is my friend, Jamie’s, 25th birthday!  I’ve known Jamie since grade school and she is and always will be one of the most special people in my life. She is one of those rare friends that, even if you haven’t seen each other in months, you can instantly pick up right where you last left off. Jamie has such a fun-loving and outgoing personality and people are naturally drawn to her.  She is very accepting and always interested in others and I admire her greatly for not only being a great friend, but f0r being a genuinely kind person. I love you dearly, Jamie.

In honor of her 25th, I made Jamie peanut butter swirl brownies. The recipe is from Martha Stewart and it is a mouthwatering combination of rich chocolate brownie batter and a sweet and salty peanut butter filling. I sampled a brownie before sending them in the mail and they were dense, rich, and full of that PB/chocolate flavor that so many of us love. A cold glass of milk is  requirement for these puppies 🙂 !

Peanut Butter Swirl Brownies

Makes 9 large or 16 small squares


For the Batter

  • 8 tablespoons (1 stick) unsalted butter, cut into small pieces, plus more for pa
  • 2 ounces good-quality unsweetened chocolate, coarsely chopped
  • 4 ounces good-quality semisweet chocolate, coarsely chopped
  • 2/3 cup all-purpose flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 3/4 cup granulated sugar
  • 3 large eggs
  • 2 teaspoons pure vanilla extract

For the Filling

  • 4 tablespoons unsalted butter, melted
  • 1/2 cup confectioners’ sugar
  • 3/4 cup smooth peanut butter
  • 1/4 teaspoon salt
  • 1/2 teaspoon pure vanilla extract


  1. Preheat oven to 325 degrees. Butter an 8-inch square baking pan and line with parchment, allowing a 2-inch overhang. Butter lining (not overhang).
  2. Make batter: Put butter and chocolates in a heatproof medium bowl set over a pan of simmering water; stir until melted. Let cool slightly. Whisk together flour, baking powder, and salt in a bowl.
  3. Whisk granulated sugar into chocolate mixture. Add eggs, and whisk until mixture is smooth. Stir in vanilla. Add flour mixture; stir until well incorporated.
  4. Make filling: Stir together butter, confectioners’ sugar, peanut butter, salt, and vanilla in a bowl until smooth.
  5. Pour one-third of batter into prepared pan; spread evenly with a rubber spatula. Drop dollops of peanut butter filling (about 1 tablespoon each) on top of batter, spacing about 1 inch apart.

        6. Drizzle remaining batter on top, and gently spread to fill pan.

7. Drop dollops of remaining filling on top.

8. Gently swirl peanut butter filling into batter with a butter knife, running the knife lengthwise and crosswise through layers.

9. Bake until a cake tester inserted into brownies (avoid center and edges) comes out with a few crumbs but is not wet, about 45   minutes. Let cool slightly in pan, about 15 minutes. Lift out; let cool completely on a wire rack before cutting into squares. Brownies can be stored in an airtight container at room temperature up to 3 days.

Recipe from: Martha Stewart Living

Also, just a side note- Jamie and her family own a very successful craft store in Berlin, Ohio (aka “the heart of Amish Country”) called Sol’s in Berlin. If you are interested in handmade crafts , I recommend checking it out!

18 Comments Add yours

  1. briarrose says:

    Dense, rich, and tasty. These look perfect. I do love chocolate and peanut butter mixed together.

  2. Carolyn says:

    Mmm, you just can’t go wrong with peanut butter swirled into decadent chocolate batter!

  3. Christine says:

    Happy Birthday to Jamie. Brownies look wonderful.

  4. Those look really sinful! Love chocolate SOOO much!

    Hey, thanks for the add on Food Buzz! I love meeting other food bloggers who love all this stuff as much as me!

  5. Those brownies look AMAZING! Just the batter with the blobs of peanut butter on it looks amazing. Not sure mine would have made it into the oven! : )

  6. What a sweet friend you are too. Wow! Fancy mailing your friend a treat!

  7. alex says:

    what a treat! and what a friend! I’ll be making these..I’ve been on a real brownie kick lately

  8. Ann says:

    Oh – YUMMY! I love chocolate and peanut butter! Happy birthday to your friend, Jamie!

  9. Lacy says:

    These look amazing! Yum! Peanut butter & chocolate, delicious!

  10. katie says:

    These look fantastic, peanut butter and chocolate is always a favorite

  11. Kelly says:

    These look sooo delicious!! I wish I could have one now, yummy!! 🙂

  12. Delicious!! Who doesn’t love chocolate and peanut butter together, and in a brownie?! Happy birthday to your friend Jaime! I am sure these will be a hit!

  13. Happy birthday to Jaime! Nice of you to bake these delicious brownies for her. I am glad you strayed away from the traditional cake. Nothing like the classic flavors of peanut butter and chocolate and in brownie form, I am sure they were awesome. Yum!

  14. Liz says:

    I have two kids that adore Reese’s…and they would LOVE your brownies! YUM!

  15. jamie says:

    Laurel I’m overwhelmed with your blogpost – thank You for everything – I am always in awe of everything you do and accomplish and know Im blessed to have a dear friend like you! You’ve made my birthday extra sweet & very special – thank you so so much. Xoxo 🙂 and I loved your note about the professional wrapping on the box! Much love!

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