Peanut Butter Brownie Swirl Cookies

Sharing is caring!

If you’ve ever found yourself torn between rich, fudgy brownies and soft, chewy peanut butter cookies, these Peanut Butter Brownie Swirl Cookies are the answer to your dessert dreams. These cookies are the best of both worlds—swirls of deep chocolate brownie dough intertwined with buttery peanut butter cookie dough, baked to perfection with melty chocolate chips in every bite.

They’re thick, chewy, and slightly crisp on the edges, with just the right amount of gooeyness in the center. Whether you’re baking for a crowd, treating yourself, or just looking for something extra special, these cookies never disappoint.

Let’s get baking!

Why You’ll Love These Cookies

• Two flavors in one—the best peanut butter cookies + fudgy brownies.
• No chilling required—which means cookies faster!
• Super easy to make, even though they look bakery-worthy.
• The perfect balance of chocolate and peanut butter.
• Gooey, rich, and loaded with chocolate chips for that perfect bite.

Key Ingredients & Why They Matter

For the Peanut Butter Cookie Dough:

• Unsalted Butter – Gives the cookies a rich, buttery texture.
• Creamy Peanut Butter – The key to a smooth, nutty flavor in every bite. Stick with classic creamy peanut butter (like Jif or Skippy) for the best texture.
• Brown Sugar & Granulated Sugar – A mix of both creates a chewy texture with just the right sweetness.
• Egg – Helps bind the dough while keeping it soft.
• Vanilla Extract – Enhances the peanut butter flavor.
• All-Purpose Flour – Just enough to hold everything together without making the cookies dry.
• Baking Soda – Gives the cookies a little lift.
• Salt – Balances out the sweetness.
• Chocolate Chips – Because peanut butter and chocolate belong together!

For the Brownie Dough:

• Unsalted Butter – Melted butter helps give the brownie dough that signature fudgy texture.
• Brown Sugar & Granulated Sugar – Brown sugar adds a little extra chew, while white sugar gives structure.
• Egg – Essential for a rich, thick dough.
• Vanilla Extract – Brings out the deep chocolate flavor.
• All-Purpose Flour – Keeps the brownies soft but sturdy enough to hold shape in the cookies.
• Cocoa Powder – The secret to deep, chocolatey flavor—use high-quality cocoa for the best results!
• Baking Powder – Helps the brownie dough stay soft and puffy.
• Salt – A pinch of salt makes the chocolate flavor pop.
• Chocolate Chips – Because more chocolate = better cookies.

How to Make Peanut Butter Brownie Swirl Cookies

Step 1: Preheat & Prep

Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

Step 2: Make the Peanut Butter Cookie Dough

In a large mixing bowl, beat together the butter, peanut butter, brown sugar, and granulated sugar until light and creamy.

Add the egg and vanilla extract, mixing well until combined.

In a separate bowl, whisk together the flour, baking soda, and salt. Slowly mix the dry ingredients into the wet ingredients until just combined. Fold in the chocolate chips. Set aside.

Step 3: Make the Brownie Dough

In another bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth. Stir in the egg and vanilla extract.

In a separate bowl, whisk together the flour, cocoa powder, salt, and baking powder. Slowly mix the dry ingredients into the wet ingredients until combined. Fold in the chocolate chips.

Step 4: Create the Swirl Effect

Take small portions of each dough and gently press them together, twisting slightly to create a marbled effect. Roll into balls and place them on the prepared baking sheet, leaving space between each cookie.

Step 5: Bake to Perfection

Bake for 10–12 minutes, or until the edges are set but the centers are still slightly soft. The cookies will firm up as they cool.

Let them rest on the baking sheet for a few minutes, then transfer to a wire rack to cool completely.

Pro Tips for the Best Cookies

• Use high-quality cocoa powder for the richest brownie flavor. Dutch-processed cocoa works beautifully!
• Don’t overmix the dough—mix just until combined for the softest cookies.
• Be gentle when swirling the doughs together—you want that pretty marbled effect, not a completely blended dough.
• Slightly underbake the cookies—they’ll continue to cook on the baking sheet as they cool, giving you chewy, gooey centers.
• Want a crispier edge? Bake the cookies for 1-2 extra minutes for a slightly crunchier bite.

Fun Variations & Add-Ins

• Peanut Butter Cup Surprise – Press a mini peanut butter cup into the center of each cookie before baking.
• Extra Chocolate Boost – Swap some of the chocolate chips for chunks of dark chocolate.
• Nutty Crunch – Add chopped peanuts to the peanut butter dough for extra texture.
• Salted Brownie Swirl – Sprinkle flaky sea salt on top before baking for an extra indulgent flavor.

How to Store & Freeze

Storing Baked Cookies:

• Store in an airtight container at room temperature for up to a week.
• For extra softness, store them with a slice of white bread—it helps keep the cookies moist!

Freezing Cookie Dough:

1. Roll the cookie dough into balls and place them on a parchment-lined baking sheet.
2. Freeze for 1–2 hours until solid.
3. Transfer to a zip-top freezer bag and freeze for up to 3 months.
4. When ready to bake, bake straight from frozen, adding 1–2 extra minutes to the baking time.

Freezing Baked Cookies:

1. Let cookies cool completely.
2. Place them in a single layer on a baking sheet and freeze for 1–2 hours.
3. Transfer to a freezer-safe container and freeze for up to 3 months.
4. Thaw at room temperature before enjoying.

Frequently Asked Questions

Can I use natural peanut butter?

Yes, but the cookies may be a little crumblier. If using natural peanut butter, make sure it’s well-stirred before adding it to the dough.

Do I have to use both chocolate chips and white chocolate chips?

Nope! Feel free to mix it up—try all dark chocolate, all white chocolate, or even peanut butter chips.

Can I make these gluten-free?

Yes! Substitute the all-purpose flour with a 1:1 gluten-free baking flour blend.

Do I have to chill the dough?

Nope! This recipe is no-chill, meaning you can go straight from mixing to baking.

Final Thoughts

Peanut Butter Brownie Swirl Cookies are the ultimate treat—a little salty, a little sweet, and absolutely packed with chocolatey, peanut buttery goodness.

They’re chewy, gooey, and rich, making them perfect for any occasion—holiday baking, cookie swaps, or just a sweet afternoon treat.

So grab your mixing bowls, swirl up some magic, and enjoy every last bite of these ridiculously good cookies!

Print