Peanut Butter Brownie Swirl Cookies

If you’re a fan of the timeless peanut butter cup, prepare to be delighted. These Peanut Butter Brownie Swirl Cookies take that beloved flavor pairing to the next level—combining deep, fudgy brownie dough with creamy peanut butter cookie dough for an irresistible, bakery-style treat.

Every cookie turns out beautifully marbled, soft in the center, lightly crackled on top, and bursting with the perfect mix of chocolate and peanut butter. If this duo is your all-time favorite, this recipe will feel like it was made just for you.

Peanut Butter Brownie Swirl Cookies

📝 Ingredients

Peanut Butter Dough

• 1/2 cup creamy peanut butter
• 1/4 cup softened butter
• 1/2 cup brown sugar
• 1 egg
• 1 tsp vanilla extract
• 1 cup all-purpose flour
• 1/2 tsp baking soda
• 1/4 tsp salt

Brownie Dough

• 1/2 cup melted butter
• 1 cup granulated sugar
• 1/3 cup cocoa powder
• 1 egg
• 1 tsp vanilla extract
• 3/4 cup all-purpose flour
• 1/4 tsp baking powder
• 1/4 tsp salt
• 1/2 cup chocolate chips

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👩‍🍳 Instructions

1. Prepare the Peanut Butter Dough

• Cream together the peanut butter, softened butter, and brown sugar until the mixture is fluffy.
• Mix in the egg and vanilla.
• In another bowl, combine the flour, baking soda, and salt.
• Add the dry ingredients to the wet and stir until everything is just mixed.

2. Make the Brownie Dough

• Stir the melted butter and sugar together.
• Add the cocoa powder and mix until smooth.
• Blend in the egg and vanilla.
• Fold in the flour, baking powder, salt, and chocolate chips until well combined with no dry spots.
• Refrigerate both doughs for about 30 minutes.

3. Shape & Swirl

• Scoop 1–2 tablespoons of each dough onto a baking sheet lined with parchment.
• Position the scoops next to each other and gently swirl the two doughs together using a toothpick or skewer to create a marbled effect.
• Bake at 350°F (175°C) for 9–11 minutes, until the tops crack slightly and the edges are set while the centers remain soft.
• Cool the cookies on the sheet for 5–10 minutes before moving them to a wire rack.