Peanut Butter Brownie Cookies

Featured in Decadent Desserts.

Experience the best of both worlds with these marbled cookies that combine rich, fudgy brownie dough with creamy peanut butter cookie dough. Each swirled cookie offers the perfect balance of chocolate and peanut butter in every bite.

Sarah
Updated on Tue, 21 Jan 2025 10:36:40 GMT
Two swirled chocolate chip cookies are placed on a white plate, showcasing a rich chocolate filling surrounded by golden cookie dough. Pin it
Two swirled chocolate chip cookies are placed on a white plate, showcasing a rich chocolate filling surrounded by golden cookie dough. | kitchenscroll.com

My obsession with chocolate and peanut butter led me to create these incredible Peanut Butter Brownie Swirl Cookies. The combination of fudgy brownie batter swirled with creamy peanut butter cookie dough creates the most gorgeous marbled pattern. Trust me when I say these cookies will make your taste buds dance with joy.

What Makes These Cookies Special

Let me tell you about the magic that happens when chocolatey brownie dough meets smooth peanut butter cookie dough. Each bite takes you on a journey through layers of flavor. The contrast between rich chocolate and nutty peanut butter creates something truly extraordinary. I love watching people's faces light up when they see the beautiful swirls.

Must Have Ingredients

  • Cocoa Powder: Go for the good stuff here. Dark cocoa powder brings that intense chocolate flavor we all crave.
  • Peanut Butter: I use regular creamy peanut butter. It works best for that perfect swirl.
  • Chocolate Chips: They make the brownie part extra gooey and wonderful.
  • Butter: Take it out early. Room temperature butter is non negotiable for the best texture.
  • Eggs: These bind everything together beautifully.
  • Flour: Regular all purpose works great. I tested gluten free blends too.
  • Sugar: A mix of white and brown sugar creates the perfect sweetness.

Starting with the Brownie Dough

Grab your mixer and cream the butter and sugar until it looks light and fluffy. Mix in your eggs and vanilla next. I love watching this part come together. Sift in the cocoa powder and flour with a tiny pinch of salt. Fold in those chocolate chips last. Your dough should look thick but still easy to scoop.

Creating the Peanut Butter Magic

In another bowl start mixing your butter peanut butter and sugar. Keep going until it looks creamy and smooth. Add in the eggs and vanilla then mix in your flour baking powder and salt. The dough should feel soft but not stick to your fingers when you touch it.

A close-up of two swirled chocolate chip cookies on a white plate, featuring a rich chocolate filling. Pin it
A close-up of two swirled chocolate chip cookies on a white plate, featuring a rich chocolate filling. | kitchenscroll.com

The Art of Swirling

This is my favorite part. Drop spoonfuls of both doughs next to each other on your baking sheet. Let them touch just a bit. Take a toothpick and create beautiful swirls by gently pulling through both doughs. Stop when you see pretty patterns forming. Too much swirling will mix them together completely.

Secrets to Perfect Baking

Set your oven to 350°F and watch the magic happen. These beauties need about 10 to 12 minutes. Look for slightly crackly tops but still soft centers. The edges should look just set. Let them hang out on the baking sheet for 5 minutes before moving them to a cooling rack.

Making These Work for Everyone

  • Gluten Free: My celiac friends love these with their favorite gluten free flour mix.
  • Dairy Free: Plant based butter works surprisingly well here.
  • Vegan: Try it with your favorite egg replacer and vegan butter.
  • Sugar Free: Coconut sugar gives these a lovely caramel note.

Keeping Them Fresh

Pop these beauties in an airtight container and they will stay perfect for 3 days on your counter. Want them to last longer? Store them in the fridge for a week or freeze them for up to 3 months. Just let them come to room temperature before serving.

Prep Ahead Tips

Sometimes I make both doughs the night before and keep them in the fridge. Just remember to let them warm up a bit before shaping. Cold dough fights back when you try to swirl it.

A close-up of two swirled chocolate chip cookies on a white plate, showcasing a rich chocolate layer on top. Pin it
A close-up of two swirled chocolate chip cookies on a white plate, showcasing a rich chocolate layer on top. | kitchenscroll.com

Ways to Serve

These cookies taste absolutely incredible while still warm. The centers stay soft and gooey. Pour a cold glass of milk grab a hot coffee or scoop some vanilla ice cream on top for pure dessert bliss.

Making Them Look Amazing

When I serve these at parties I arrange them swirl side up on my favorite platter. Sometimes I dust them with powdered sugar or drizzle melted chocolate on top. People always grab their phones for pictures before taking a bite.

Quick Fixes for Common Problems

  • Cookies Spreading: Pop your dough in the fridge for 30 minutes first.
  • Messy Swirls: Use equal amounts of each dough and swirl gently.
  • Too Dry: Take them out when the middle still looks slightly underdone.

Fun Ways to Switch Things Up

  • Extra Crunch: Sprinkle chopped peanuts into the peanut butter dough.
  • Chocolate Heaven: Mix dark and white chocolate chips together.
  • Warm Spices: A touch of cinnamon in the peanut butter dough tastes amazing.

Getting Those Perfect Swirls

Your dough consistency matters so much here. It should be thick but still soft enough to work with. Use a light touch when swirling. I love using my cookie scoop for even portions that bake perfectly every time.

A close-up of richly swirled chocolate and buttery cookie rolls on a white plate, with a few extra cookies in the background. Pin it
A close-up of richly swirled chocolate and buttery cookie rolls on a white plate, with a few extra cookies in the background. | kitchenscroll.com

Good for You Too

Sure these are treats but they pack some goodness too. The peanut butter adds protein and the dark chocolate brings antioxidants. At least that is what I tell myself when I reach for a second cookie.

Perfect Times to Make These

I bring these to every holiday party and bake sale. They always disappear first from the dessert table. Something about those swirls just draws people in. Plus they travel really well.

Freezing for Later

Roll your dough balls freeze them on a tray then toss them in a freezer bag. They last 3 months frozen. Just add an extra minute or two when baking from frozen. Fresh cookies whenever you want them.

Tools You Will Need

  • Mixing Bowls: You will need two big ones for the different doughs.
  • Cookie Scoop: Makes portioning so much easier.
  • Toothpick: The secret to those pretty swirls.
  • Baking Sheet: Any flat nonstick sheet works great.

Why I Love These Cookies

These cookies bring together everything wonderful about brownies and peanut butter cookies. The marbled swirls make them look fancy but they are surprisingly simple to make. Every time I bake them they remind me why I fell in love with baking in the first place.

Frequently Asked Questions

→ Why do I need to chill the dough?

Chilling the dough makes it easier to handle and helps prevent the cookies from spreading too much while baking. It also helps develop deeper flavors in both doughs.

→ Can I make these cookies ahead?

Yes, you can prepare both doughs up to 24 hours in advance and keep them chilled. The baked cookies also freeze well for up to 3 months in an airtight container.

→ How do I know when the cookies are done?

The cookies are done when the tops are slightly crackly and the edges are set but the centers still look soft. They will continue to set as they cool on the baking sheet.

→ Can I use crunchy peanut butter?

While creamy peanut butter is recommended for the best texture, you can use crunchy peanut butter if you prefer some extra texture in your cookies.

→ How do I get the perfect swirl?

Use a toothpick or skewer to gently swirl the doughs together without overmixing. Just a few swirls will create a beautiful marbled effect while keeping the flavors distinct.

Peanut Butter Brownie Cookies

These marbled cookies combine fudgy brownie dough with creamy peanut butter cookie dough for an irresistible treat. Perfect crispy edges with soft centers.

Prep Time
30 Minutes
Cook Time
10 Minutes
Total Time
40 Minutes

Category: Sweet Treats

Difficulty: Intermediate

Cuisine: American

Yield: 12 Servings (12 cookies)

Dietary: Vegetarian

Ingredients

01 1/2 cup creamy peanut butter.
02 3/4 cup butter, divided (1/4 cup softened for PB dough, 1/2 cup melted for brownie dough).
03 1/2 cup brown sugar.
04 1 cup white sugar.
05 2 large eggs (divided).
06 2 teaspoons vanilla extract (divided).
07 1 3/4 cups all-purpose flour (divided).
08 1/2 teaspoon baking soda.
09 1/4 teaspoon baking powder.
10 1/2 teaspoon salt (divided).
11 1/3 cup cocoa powder.
12 1/2 cup chocolate chips.

Instructions

Step 01

Beat peanut butter, softened butter, and brown sugar until fluffy. Mix in egg and vanilla, then fold in flour mixed with baking soda and salt.

Step 02

Whisk melted butter with sugar, blend in cocoa powder until smooth. Add egg and vanilla, then mix in flour, baking powder, salt, and chocolate chips.

Step 03

Refrigerate both doughs for 30 minutes until firm enough to handle.

Step 04

Place portions of each dough side by side on lined baking sheet. Swirl together gently with a toothpick.

Step 05

Cook at 350°F for 9-11 minutes until edges set but centers soft.

Step 06

Let cookies rest on baking sheet 5-10 minutes before moving to cooling rack.

Notes

  1. Centers will be soft when done.
  2. Don't overmix when swirling.
  3. Can chill dough overnight.

Tools You'll Need

  • Baking sheets.
  • Parchment paper.
  • Mixer.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Peanuts.
  • Eggs.
  • Wheat.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 350
  • Total Fat: 18 g
  • Total Carbohydrate: 45 g
  • Protein: 6 g