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Easy Peanut Butter Brownie Swirl Cookies – Best Homemade Bakery-Style Treat

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These Peanut Butter Brownie Swirl Cookies combine rich chocolate brownie dough with soft, nutty peanut butter cookie dough in a beautiful marbled swirl. Fudgy centers, crackly tops, and irresistible flavor in every bite.

  • Total Time: 40 minutes
  • Yield: 12 cookies

Ingredients

Scale
  • For the Peanut Butter Dough:
  • 1/2 cup creamy peanut butter
  • 1/4 cup butter, softened
  • 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
  • For the Brownie Dough:
  • 1/2 cup butter, melted
  • 1 cup white sugar
  • 1/3 cup cocoa powder
  • 1 egg
  • 1 tsp vanilla
  • 3/4 cup all-purpose flour
  • 1/4 tsp baking powder
  • 1/4 tsp salt
  • 1/2 cup chocolate chips

Instructions

  1. Make the peanut butter dough: Beat peanut butter, softened butter, and brown sugar until light and fluffy. Mix in egg and vanilla. In a separate bowl, whisk flour, baking soda, and salt. Gradually combine with wet ingredients until just mixed.
  2. Make the brownie dough: Whisk melted butter and sugar together. Mix in cocoa powder until smooth, then add egg and vanilla. Fold in flour, baking powder, salt, and chocolate chips until fully incorporated.
  3. Chill both doughs for 30 minutes.
  4. Scoop 1–2 tablespoon portions of each dough side by side onto a parchment-lined baking sheet. Use a toothpick or skewer to gently swirl into a marbled pattern.
  5. Bake at 350°F (175°C) for 9–11 minutes until edges are set and tops are lightly crackly. Centers will remain soft.
  6. Cool on baking sheet for 5–10 minutes before transferring to a wire rack to cool completely.

Notes

  • Do not overbake — the centers should stay soft for a fudgy texture.
  • Chilling helps prevent spreading and keeps the swirl pattern defined.
  • Store in an airtight container for up to 4 days.
  • Author: Emma
  • Prep Time: 30 minutes
  • Cook Time: 10 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian